diff --git a/lua/entities/gmod_mus_clock_analog/cl_init.lua b/lua/entities/gmod_mus_clock_analog/cl_init.lua
index d8ab24f..01c5e18 100644
--- a/lua/entities/gmod_mus_clock_analog/cl_init.lua
+++ b/lua/entities/gmod_mus_clock_analog/cl_init.lua
@@ -13,6 +13,7 @@ function ENT:Think()
             --self.Arrows[i] = ents.CreateClientProp("models/metrostroi/81-717/reverser.mdl")
             --self.Arrows[i]:SetModel( model )
             self.Arrows[i] = ClientsideModel(model,RENDERGROUP_OPAQUE)
+            if not IsValid(self.Arrows[i]) then break end
             self.Arrows[i]:SetPos(self:GetPos())
             self.Arrows[i]:SetAngles(self:GetAngles())
             self.Arrows[i]:SetParent(self)
@@ -23,13 +24,15 @@ function ENT:Think()
         self:EmitSound("mus/clock_click"..math.random(1,8)..".wav",65,math.random(95,105),0.5)
         self.OldSec = d.sec
         self.SecPull = RealTime()+0.05
-        self.Arrows[1]:SetPoseParameter("position",(0.5+d.hour/24+d.min/1440)%1)
-        self.Arrows[2]:SetPoseParameter("position",d.min/60+d.sec/3600)
+        if IsValid(self.Arrows[1]) then self.Arrows[1]:SetPoseParameter("position",(0.5+d.hour/24+d.min/1440)%1) end
+        if IsValid(self.Arrows[2]) then self.Arrows[2]:SetPoseParameter("position",d.min/60+d.sec/3600) end
     end
-    if RealTime()-self.SecPull > 0 or d.sec < 30 then
-        self.Arrows[3]:SetPoseParameter("position",d.sec/60)
-    else
-        self.Arrows[3]:SetPoseParameter("position",d.sec/60 +(d.sec-15)/60*0.002)
+    if IsValid(self.Arrows[3]) then
+        if RealTime()-self.SecPull > 0 or d.sec < 30 then
+            self.Arrows[3]:SetPoseParameter("position",d.sec/60)
+        else
+            self.Arrows[3]:SetPoseParameter("position",d.sec/60 +(d.sec-15)/60*0.002)
+        end
     end
 
     --[[
diff --git a/lua/entities/gmod_subway_base/cl_init.lua b/lua/entities/gmod_subway_base/cl_init.lua
index 3295487..7624a3a 100644
--- a/lua/entities/gmod_subway_base/cl_init.lua
+++ b/lua/entities/gmod_subway_base/cl_init.lua
@@ -392,6 +392,7 @@ function ENT:SpawnCSEnt(k,override)
         local model = v.model
         if v.modelcallback then model = v.modelcallback(self) or v.model end
         local cent = ClientsideModel(model,RENDERGROUP_OPAQUE)
+        if not IsValid(cent) then return false end
         cent.GetBodyColor = function()
             if not IsValid(self) then return Vector(1) end
             return self:GetBodyColor()
@@ -1346,6 +1347,7 @@ function ENT:Think()
         for i,v in ipairs(self.LeftDoorPositions) do
             if self:GetPackedBool("DoorLS"..i) and not IsValid(stucked[i]) then
                 local ent = ClientsideModel(table.Random(self.PassengerModels),RENDERGROUP_OPAQUE)
+                if not IsValid(ent) then break end
                 ent:SetPos(self:LocalToWorld(Vector(v.x,v.y,self:GetStandingArea().z)))
                 ent:SetAngles(self:LocalToWorldAngles(Angle(0,v.y < 0 and -90 or 90,0)))
                 ent:SetSkin(math.floor(ent:SkinCount()*math.random()))
@@ -1368,6 +1370,7 @@ function ENT:Think()
         for i,v in ipairs(self.RightDoorPositions) do
             if self:GetPackedBool("DoorRS"..i) and not IsValid(stucked[-i]) then
                 local ent = ClientsideModel(table.Random(self.PassengerModels),RENDERGROUP_OPAQUE)
+                if not IsValid(ent) then break end
                 ent:SetPos(self:LocalToWorld(Vector(v.x,v.y,self:GetStandingArea().z)))
                 ent:SetAngles(self:LocalToWorldAngles(Angle(0,v.y < 0 and -90 or 90,0)))
                 ent:SetSkin(math.floor(ent:SkinCount()*math.random()))
@@ -1403,6 +1406,7 @@ function ENT:Think()
                 --local ent = ents.CreateClientProp("models/metrostroi/81-717/reverser.mdl")
                 --ent:SetModel(table.Random(self.PassengerModels))
                 local ent = ClientsideModel(table.Random(self.PassengerModels),RENDERGROUP_OPAQUE)
+                if not IsValid(ent) then break end
                 ent:SetPos(self:LocalToWorld(pos))
                 ent:SetAngles(Angle(0,math.random(0,360),0))
                 --[[
diff --git a/lua/entities/gmod_track_clock_interval/cl_init.lua b/lua/entities/gmod_track_clock_interval/cl_init.lua
index 9531965..3b0f789 100644
--- a/lua/entities/gmod_track_clock_interval/cl_init.lua
+++ b/lua/entities/gmod_track_clock_interval/cl_init.lua
@@ -30,6 +30,7 @@ function ENT:Think()
             --    ent:SetPos(self:LocalToWorld(v[1]))
             --end)
             self.Digits[k] = ClientsideModel(model, RENDERGROUP_OPAQUE)
+            if not IsValid(self.Digits[k]) then break end
 
             --if ent.Spawned then hook.Remove("MetrostroiBigLag",ent) end
             --ent.Spawned = true
diff --git a/lua/entities/gmod_track_clock_small/cl_init.lua b/lua/entities/gmod_track_clock_small/cl_init.lua
index 9408242..8bb81fa 100644
--- a/lua/entities/gmod_track_clock_small/cl_init.lua
+++ b/lua/entities/gmod_track_clock_small/cl_init.lua
@@ -59,6 +59,7 @@ function ENT:Think()
       --  --ent.Spawned = true
       --end)
       self.Digits[k] = ClientsideModel(model,RENDERGROUP_OPAQUE)
+      if not IsValid(self.Digits[k]) then break end
       self.Digits[k]:SetPos(self:LocalToWorld(v[1]))
 			self.Digits[k]:SetAngles(self:GetAngles())
 			self.Digits[k]:SetSkin(10)
diff --git a/lua/entities/gmod_track_clock_time/cl_init.lua b/lua/entities/gmod_track_clock_time/cl_init.lua
index 8f2d4a9..46664da 100644
--- a/lua/entities/gmod_track_clock_time/cl_init.lua
+++ b/lua/entities/gmod_track_clock_time/cl_init.lua
@@ -31,6 +31,7 @@ function ENT:Think()
             --  --ent.Spawned = true
             --end)
             self.Digits[k] = ClientsideModel(model,RENDERGROUP_OPAQUE)
+            if not IsValid(self.Digits[k]) then break end
             self.Digits[k]:SetPos(self:LocalToWorld(v[1]))
             self.Digits[k]:SetAngles(self:GetAngles())
             self.Digits[k]:SetSkin(10)
diff --git a/lua/entities/gmod_track_horlift_signal/cl_init.lua b/lua/entities/gmod_track_horlift_signal/cl_init.lua
index 096bf0f..2223ff5 100644
--- a/lua/entities/gmod_track_horlift_signal/cl_init.lua
+++ b/lua/entities/gmod_track_horlift_signal/cl_init.lua
@@ -124,6 +124,7 @@ function ENT:Think()
             --  --ent.Spawned = true
             --end)
             self.Models[k] = ClientsideModel(self.ModelNames[v[2]],RENDERGROUP_OPAQUE)
+            if not IsValid(self.Models[k]) then break end
             self.Models[k]:SetPos(self:LocalToWorld(v[1]))
             self.Models[k]:SetAngles(self:LocalToWorldAngles(Angle(v[2]==5 and 90 or 0,0,0)))
             if k < 3 then
diff --git a/lua/entities/gmod_track_mus_elektronika7/cl_init.lua b/lua/entities/gmod_track_mus_elektronika7/cl_init.lua
index ba1ca9d..ca4cdff 100644
--- a/lua/entities/gmod_track_mus_elektronika7/cl_init.lua
+++ b/lua/entities/gmod_track_mus_elektronika7/cl_init.lua
@@ -23,6 +23,7 @@ function ENT:Think()
             --    --ent.Spawned = true
             --end)
             self.Digits[k] = ClientsideModel("models/mus/ussr_clock_model/num_"..(k == 1 and "no" or "").."zero.mdl",RENDERGROUP_OPAQUE)
+            if not IsValid(self.Digits[k]) then break end
             self.Digits[k]:SetPos(self:LocalToWorld(v))
             self.Digits[k]:SetAngles(self:GetAngles())
             self.Digits[k]:SetSkin(10)
diff --git a/lua/entities/gmod_track_platform/cl_init.lua b/lua/entities/gmod_track_platform/cl_init.lua
index d979384..d39126d 100644
--- a/lua/entities/gmod_track_platform/cl_init.lua
+++ b/lua/entities/gmod_track_platform/cl_init.lua
@@ -238,6 +238,7 @@ function ENT:Think()
                     --    --ent.Spawned = true
                     --end)
                     self.ClientModels[i] = ClientsideModel(self.Pool[i].model,RENDERGROUP_OPAQUE)
+                    if not IsValid(self.ClientModels[i]) then continue end
                     self.ClientModels[i]:SetPos(self.Pool[i].pos)
                     self.ClientModels[i]:SetAngles(self.Pool[i].ang)
                     self.ClientModels[i]:SetSkin(math.floor(self.ClientModels[i]:SkinCount()*self.Pool[i].skin))
@@ -292,6 +293,7 @@ function ENT:Think()
         --    --ent.Spawned = true
         --end)
         local ent= ClientsideModel(self.Pool[i].model,RENDERGROUP_OPAQUE)
+        if not IsValid(ent) then break end
         ent:SetPos(pos)
         ent:SetSkin(math.floor(ent:SkinCount()*self.Pool[i].skin))
         ent:SetModelScale(self.Pool[i].scale,0)
diff --git a/lua/entities/gmod_track_pui/cl_init.lua b/lua/entities/gmod_track_pui/cl_init.lua
index 25f4e8a..37a64e4 100644
--- a/lua/entities/gmod_track_pui/cl_init.lua
+++ b/lua/entities/gmod_track_pui/cl_init.lua
@@ -59,6 +59,7 @@ function ENT:Think()
             --    --ent.Spawned = true
             --end)
             self.Digits[k] = ClientsideModel("models/metrostroi/mus_clock/pui_ind_"..v[2]..".mdl",RENDERGROUP_OPAQUE)
+            if not IsValid(self.Digits[k]) then continue end
             self.Digits[k]:SetPos(self:LocalToWorld(v[1]))
             self.Digits[k]:SetAngles(self:GetAngles())
             self.Digits[k]:SetSkin(1)
@@ -80,11 +81,13 @@ function ENT:Think()
         --    --ent.Spawned = true
         --end)
         self.Digits[0] = ClientsideModel("models/metrostroi/mus_clock/pui_lamp.mdl",RENDERGROUP_OPAQUE)
-        self.Digits[0]:SetPos(self:GetAttachment(self:LookupAttachment("lamp")).Pos)
-        self.Digits[0]:SetAngles(self:GetAngles())
-        self.Digits[0]:SetParent(self)
-        self.Digits[0]:SetRenderMode( RENDERMODE_TRANSALPHA )
-        self.Digits[0]:SetColor(Color(255,255,255,lamp*255))
+        if IsValid(self.Digits[0]) then
+            self.Digits[0]:SetPos(self:GetAttachment(self:LookupAttachment("lamp")).Pos)
+            self.Digits[0]:SetAngles(self:GetAngles())
+            self.Digits[0]:SetParent(self)
+            self.Digits[0]:SetRenderMode( RENDERMODE_TRANSALPHA )
+            self.Digits[0]:SetColor(Color(255,255,255,lamp*255))
+        end
     elseif IsValid(self.Digits[0]) and lamp > 0 then
         self.Digits[0]:SetColor(Color(255,255,255,lamp*255))
     elseif IsValid(self.Digits[0]) and lamp == 0 then
diff --git a/lua/entities/gmod_track_signal/cl_init.lua b/lua/entities/gmod_track_signal/cl_init.lua
index fc0d168..7027aad 100644
--- a/lua/entities/gmod_track_signal/cl_init.lua
+++ b/lua/entities/gmod_track_signal/cl_init.lua
@@ -68,9 +68,13 @@ function ENT:SpawnMainModels(pos,ang,LenseNum,add)
                 else
                     self.Models[1][idx] = ClientsideModel(v,RENDERGROUP_OPAQUE)
                 end
-                self.Models[1][idx]:SetPos(self:LocalToWorld(pos))
-                self.Models[1][idx]:SetAngles(self:LocalToWorldAngles(ang))
-                self.Models[1][idx]:SetParent(self)
+                if IsValid(self.Models[1][idx]) then
+                    self.Models[1][idx]:SetPos(self:LocalToWorld(pos))
+                    self.Models[1][idx]:SetAngles(self:LocalToWorldAngles(ang))
+                    self.Models[1][idx]:SetParent(self)
+                else
+                    self.ModelsCreated = false
+                end
             end
         end
     end
@@ -79,9 +83,13 @@ end
 function ENT:SpawnHeads(ID,model,pos,ang,glass,notM,add)
     if not IsValid(self.Models[1][ID]) then
         self.Models[1][ID] = ClientsideModel(model,RENDERGROUP_OPAQUE)
-        self.Models[1][ID]:SetPos(self:LocalToWorld(pos))
-        self.Models[1][ID]:SetAngles(self:LocalToWorldAngles(ang))
-        self.Models[1][ID]:SetParent(self)
+        if IsValid(self.Models[1][ID]) then
+            self.Models[1][ID]:SetPos(self:LocalToWorld(pos))
+            self.Models[1][ID]:SetAngles(self:LocalToWorldAngles(ang))
+            self.Models[1][ID]:SetParent(self)
+        else
+            self.ModelsCreated = false
+        end
     end
     if self.RN and self.RN == self.RouteNumbers.sep then
         self.RN = self.RN + 1
@@ -92,9 +100,13 @@ function ENT:SpawnHeads(ID,model,pos,ang,glass,notM,add)
         local rnadd = ((self.RouteNumbers[id] and self.RouteNumbers[id][1] ~= "X") and (self.RouteNumbers[id][3] and not self.RouteNumbers[id][2] and "2" or "") or "5")
         local LampIndicator = self.TrafficLightModels[self.LightType].LampIndicator
         self.Models[1][rouid] = ClientsideModel(LampIndicator.model..rnadd..".mdl",RENDERGROUP_OPAQUE)
-        self.Models[1][rouid]:SetPos(self:LocalToWorld(pos-self.RouteNumberOffset*(self.Left and LampIndicator[1] or LampIndicator[2])))
-        self.Models[1][rouid]:SetAngles(self:GetAngles())
-        self.Models[1][rouid]:SetParent(self)
+        if IsValid(self.Models[1][rouid]) then
+            self.Models[1][rouid]:SetPos(self:LocalToWorld(pos-self.RouteNumberOffset*(self.Left and LampIndicator[1] or LampIndicator[2])))
+            self.Models[1][rouid]:SetAngles(self:GetAngles())
+            self.Models[1][rouid]:SetParent(self)
+        else
+            self.ModelsCreated = false
+        end
         if self.RouteNumbers[id] then self.RouteNumbers[id].pos = pos-self.RouteNumberOffset*(self.Left and LampIndicator[1] or LampIndicator[2]) end
         self.RN = self.RN + 1
     end
@@ -105,6 +117,7 @@ function ENT:SpawnHeads(ID,model,pos,ang,glass,notM,add)
                 local ID_glassi = ID_glass..i
                 if not IsValid(self.Models[1][ID_glassi]) then  --NEWLENSES
                     self.Models[1][ID_glassi] = ClientsideModel(tbl[1],RENDERGROUP_OPAQUE)
+                    if not IsValid(self.Models[1][ID_glassi]) then self.ModelsCreated = false continue end
                     self.Models[1][ID_glassi]:SetPos(self:LocalToWorld(pos+tbl[2]*(add and Vector(-1,1,1) or 1)))
                     self.Models[1][ID_glassi]:SetAngles(self:LocalToWorldAngles(ang))
                     self.Models[1][ID_glassi]:SetParent(self)
@@ -128,13 +141,17 @@ function ENT:SetLight(ID,ID2,pos,ang,skin,State,Change)
         end
     elseif IsStateAboveZero then
         self.Models[3][IDID2] = ClientsideModel(self.TrafficLightModels[self.LightType].LampBase.model,RENDERGROUP_OPAQUE)
-        self.Models[3][IDID2]:SetPos(self:LocalToWorld(pos))
-        self.Models[3][IDID2]:SetAngles(self:LocalToWorldAngles(ang))
-        self.Models[3][IDID2]:SetSkin(skin)
-        self.Models[3][IDID2]:SetParent(self)
-        self.Models[3][IDID2]:SetRenderMode(RENDERMODE_TRANSCOLOR)
-        -- self.Models[3][IDID2]:SetColor(Color(255, 255, 255, 0))
-        self.Models[3][IDID2]:SetColor(Color(255,255,255,State*255))
+        if IsValid(self.Models[3][IDID2]) then
+            self.Models[3][IDID2]:SetPos(self:LocalToWorld(pos))
+            self.Models[3][IDID2]:SetAngles(self:LocalToWorldAngles(ang))
+            self.Models[3][IDID2]:SetSkin(skin)
+            self.Models[3][IDID2]:SetParent(self)
+            self.Models[3][IDID2]:SetRenderMode(RENDERMODE_TRANSCOLOR)
+            -- self.Models[3][IDID2]:SetColor(Color(255, 255, 255, 0))
+            self.Models[3][IDID2]:SetColor(Color(255,255,255,State*255))
+        else
+            self.ModelsCreated = false
+        end
     end
 end
 
@@ -144,25 +161,33 @@ function ENT:SpawnLetter(i,model,pos,letter,double)
     local LetMaterialsletter = LetMaterials..letter
     if double ~= false and not IsValid(self.Models[2][i]) and (self.Double or not self.Left) and (not letter:match("s[1-3]") or letter == "s3" or self.Double and self.Left) then
         self.Models[2][i] = ClientsideModel(model,RENDERGROUP_OPAQUE)
-        self.Models[2][i]:SetAngles(self:LocalToWorldAngles(Angle(0,180,0)))
-        self.Models[2][i]:SetPos(self:LocalToWorld(self.BasePosition+pos))
-        self.Models[2][i]:SetParent(self)
-        for k,v in pairs(self.Models[2][i]:GetMaterials()) do
-            if v:find(LetMaterialsStart) then
-                self.Models[2][i]:SetSubMaterial(k-1,LetMaterialsletter)
+        if IsValid(self.Models[2][i]) then
+            self.Models[2][i]:SetAngles(self:LocalToWorldAngles(Angle(0,180,0)))
+            self.Models[2][i]:SetPos(self:LocalToWorld(self.BasePosition+pos))
+            self.Models[2][i]:SetParent(self)
+            for k,v in pairs(self.Models[2][i]:GetMaterials()) do
+                if v:find(LetMaterialsStart) then
+                    self.Models[2][i]:SetSubMaterial(k-1,LetMaterialsletter)
+                end
             end
+        else
+            self.ModelsCreated = false
         end
     end
     local id = i.."d"
     if not double and not IsValid(self.Models[2][id]) and (self.Double or self.Left) and (not letter:match("s[1-3]") or letter == "s3" or self.Double and not self.Left) then
         self.Models[2][id] = ClientsideModel(model,RENDERGROUP_OPAQUE)
-        self.Models[2][id]:SetAngles(self:LocalToWorldAngles(Angle(0,180,0)))
-        self.Models[2][id]:SetPos(self:LocalToWorld((self.BasePosition+pos)*Vector(-1,1,1)))
-        self.Models[2][id]:SetParent(self)
-        for k,v in pairs(self.Models[2][id]:GetMaterials()) do
-            if v:find(LetMaterialsStart) then
-                self.Models[2][id]:SetSubMaterial(k-1,LetMaterialsletter)
+        if IsValid(self.Models[2][id]) then
+            self.Models[2][id]:SetAngles(self:LocalToWorldAngles(Angle(0,180,0)))
+            self.Models[2][id]:SetPos(self:LocalToWorld((self.BasePosition+pos)*Vector(-1,1,1)))
+            self.Models[2][id]:SetParent(self)
+            for k,v in pairs(self.Models[2][id]:GetMaterials()) do
+                if v:find(LetMaterialsStart) then
+                    self.Models[2][id]:SetSubMaterial(k-1,LetMaterialsletter)
+                end
             end
+        else
+            self.ModelsCreated = false
         end
     end
 end
@@ -173,7 +198,7 @@ end
 
 function ENT:RemoveModels(final)
     if self.Models and  self.Models.have then
-        for _,v in pairs(self.Models) do if type(v) == "table" then for _,v1 in pairs(v) do v1:Remove() end end end
+        for _,v in pairs(self.Models) do if type(v) == "table" then for _,v1 in pairs(v) do if IsValid(v1) then v1:Remove() end end end end
     end
     self.Models = {{},{},{}}
     self.ModelsCreated = false
@@ -247,6 +272,7 @@ function ENT:Think()
     local TLM = self.TrafficLightModels[self.LightType]
 
     if not self.ModelsCreated then
+        self.ModelsCreated = true
         local ID = 0
         local ID2 = 0
         -- Create new clientside models
@@ -315,9 +341,13 @@ function ENT:Think()
                 self.Models[1]["rous"] = ClientsideModel(TLM.LampIndicator.model..rnadd..".mdl",RENDERGROUP_OPAQUE)
                 self.RouteNumbers[id].pos = (self.BasePosition+offset+self.LongOffset-TLM.LampIndicator[3])
                 if self.Left then self.RouteNumbers[id].pos = self.RouteNumbers[id].pos*TLM.LampIndicator[4] end
-                self.Models[1]["rous"]:SetPos(self:LocalToWorld(self.RouteNumbers[id].pos))
-                self.Models[1]["rous"]:SetAngles(self:GetAngles())
-                self.Models[1]["rous"]:SetParent(self)
+                if IsValid(self.Models[1]["rous"]) then
+                    self.Models[1]["rous"]:SetPos(self:LocalToWorld(self.RouteNumbers[id].pos))
+                    self.Models[1]["rous"]:SetAngles(self:GetAngles())
+                    self.Models[1]["rous"]:SetParent(self)
+                else
+                    self.ModelsCreated = false
+                end
             end
             if #self.RouteNumbers > 0 and (#self.RouteNumbers ~= 1 or not self.RouteNumbers.sep) then
                 self.RN = 1
@@ -330,9 +360,13 @@ function ENT:Think()
             if self.AutostopPresent then
                 if not IsValid(self.Models[1]["autostop"]) then
                     self.Models[1]["autostop"] = ClientsideModel(self.AutostopModel[1],RENDERGROUP_OPAQUE)
-                    self.Models[1]["autostop"]:SetPos(self:LocalToWorld(self.BasePosition+self.AutostopModel[2]))
-                    self.Models[1]["autostop"]:SetAngles(self:GetAngles())
-                    self.Models[1]["autostop"]:SetParent(self)
+                    if IsValid(self.Models[1]["autostop"]) then
+                        self.Models[1]["autostop"]:SetPos(self:LocalToWorld(self.BasePosition+self.AutostopModel[2]))
+                        self.Models[1]["autostop"]:SetAngles(self:GetAngles())
+                        self.Models[1]["autostop"]:SetParent(self)
+                    else
+                        self.ModelsCreated = false
+                    end
                 end
             end
             self.NamesOffset = Vector(0, 0, 0)
@@ -381,9 +415,13 @@ function ENT:Think()
                 local id = self.Arrow
                 self.Models[1]["roua"] = ClientsideModel(TLM.LampIndicator.model.."4.mdl",RENDERGROUP_OPAQUE)
                 self.SpecRouteNumbers.pos = (self.BasePosition+offset+self.LongOffset-TLM.LampIndicator[5])*(self.Left and TLM.LampIndicator[6] or 1) - (self.RouteNumberOffset or Vector(0, 0, 0))
-                self.Models[1]["roua"]:SetPos(self:LocalToWorld(self.SpecRouteNumbers.pos))
-                self.Models[1]["roua"]:SetAngles(self:LocalToWorldAngles(self.Left and Angle(-90,0,0) or Angle(90,0,0)))
-                self.Models[1]["roua"]:SetParent(self)
+                if IsValid(self.Models[1]["roua"]) then
+                    self.Models[1]["roua"]:SetPos(self:LocalToWorld(self.SpecRouteNumbers.pos))
+                    self.Models[1]["roua"]:SetAngles(self:LocalToWorldAngles(self.Left and Angle(-90,0,0) or Angle(90,0,0)))
+                    self.Models[1]["roua"]:SetParent(self)
+                else
+                    self.ModelsCreated = false
+                end
             end
             offset = self.RenderOffset[self.LightType]+(OneLense and TLM.name_one or TLM.name)+(OneLense and self.RouteNumberOffset or Vector(0, 0, 0))
             if self.LightType == 1 then
@@ -421,13 +459,16 @@ function ENT:Think()
             if not IsValid(self.Models[1][k]) then
                 local v = TLM["m1"]
                 self.Models[1][k] = ClientsideModel(v,RENDERGROUP_OPAQUE)
-                self.Models[1][k]:SetPos(self:LocalToWorld(self.BasePosition*(self.Left and Vector(-1,1,1) or 1)))
-                self.Models[1][k]:SetAngles(self:LocalToWorldAngles(self.Left and Angle(-1,1,1) or Angle(1,1,1)))
-                self.Models[1][k]:SetParent(self)
+                if IsValid(self.Models[1][k]) then
+                    self.Models[1][k]:SetPos(self:LocalToWorld(self.BasePosition*(self.Left and Vector(-1,1,1) or 1)))
+                    self.Models[1][k]:SetAngles(self:LocalToWorldAngles(self.Left and Angle(-1,1,1) or Angle(1,1,1)))
+                    self.Models[1][k]:SetParent(self)
+                else
+                    self.ModelsCreated = false
+                end
             end
         end
         self.Models.have = true
-        self.ModelsCreated = true
     else
         --TODO
         if self.AutostopPresent then
@@ -509,12 +550,16 @@ function ENT:Think()
             if v[2] then State2 = self:Animate(rou2k,self.Num:find(v[2])and 1 or 0,     0,1, 256) end
             if not IsValid(self.Models[3][rou1k]) and State1 > 0 then
                 self.Models[3][rou1k] = ClientsideModel(v[3] and LampIndicatorModels_numb_mdl or LampIndicatorModels_lamp_mdl,RENDERGROUP_OPAQUE)
-                self.Models[3][rou1k]:SetPos(self:LocalToWorld(v.pos + self.OldRouteNumberSetup[4]))
-                self.Models[3][rou1k]:SetAngles(self:GetAngles())
-                self.Models[3][rou1k]:SetParent(self)
-                self.Models[3][rou1k]:SetSkin(v[3] and self.OldRouteNumberSetup[5][v[1]] or self.OldRouteNumberSetup[6][v[1]] or tonumber(v[1])-1)
-                self.Models[3][rou1k]:SetRenderMode(RENDERMODE_TRANSCOLOR)
-                self.Models[3][rou1k]:SetColor(Color(255, 255, 255, 0))
+                if IsValid(self.Models[3][rou1k]) then
+                    self.Models[3][rou1k]:SetPos(self:LocalToWorld(v.pos + self.OldRouteNumberSetup[4]))
+                    self.Models[3][rou1k]:SetAngles(self:GetAngles())
+                    self.Models[3][rou1k]:SetParent(self)
+                    self.Models[3][rou1k]:SetSkin(v[3] and self.OldRouteNumberSetup[5][v[1]] or self.OldRouteNumberSetup[6][v[1]] or tonumber(v[1])-1)
+                    self.Models[3][rou1k]:SetRenderMode(RENDERMODE_TRANSCOLOR)
+                    self.Models[3][rou1k]:SetColor(Color(255, 255, 255, 0))
+                else
+                    self.ModelsCreated = false
+                end
             end
             if IsValid(self.Models[3][rou1k]) then
                 if State1 > 0 then
@@ -525,12 +570,16 @@ function ENT:Think()
             end
             if not IsValid(self.Models[3][rou2k]) and v[3] and v[2] and State2 > 0 then
                 self.Models[3][rou2k] = ClientsideModel(LampIndicatorModels_numb_mdl,RENDERGROUP_OPAQUE)
-                self.Models[3][rou2k]:SetPos(self:LocalToWorld(v.pos + self.OldRouteNumberSetup[4] + TLM.RouteNumberOffset2))
-                self.Models[3][rou2k]:SetAngles(self:GetAngles())
-                self.Models[3][rou2k]:SetParent(self)
-                self.Models[3][rou2k]:SetSkin(self.OldRouteNumberSetup[5][v[2]] or tonumber(v[2])-1)
-                self.Models[3][rou2k]:SetRenderMode(RENDERMODE_TRANSCOLOR)
-                self.Models[3][rou2k]:SetColor(Color(255, 255, 255, 0))
+                if IsValid(self.Models[3][rou2k]) then
+                    self.Models[3][rou2k]:SetPos(self:LocalToWorld(v.pos + self.OldRouteNumberSetup[4] + TLM.RouteNumberOffset2))
+                    self.Models[3][rou2k]:SetAngles(self:GetAngles())
+                    self.Models[3][rou2k]:SetParent(self)
+                    self.Models[3][rou2k]:SetSkin(self.OldRouteNumberSetup[5][v[2]] or tonumber(v[2])-1)
+                    self.Models[3][rou2k]:SetRenderMode(RENDERMODE_TRANSCOLOR)
+                    self.Models[3][rou2k]:SetColor(Color(255, 255, 255, 0))
+                else
+                    self.ModelsCreated = false
+                end
             end
             if IsValid(self.Models[3][rou2k]) then
                 if State2 > 0 then
@@ -546,20 +595,24 @@ function ENT:Think()
                 self.Models[3]["roua"] = ClientsideModel(LampIndicatorModels_lamp_mdl,RENDERGROUP_OPAQUE)
                 self.SpecRouteNumbers.pos = (self.BasePosition+offset-TLM.SpecRouteNumberOffset)-(self.RouteNumberOffset or Vector(0, 0, 0))+TLM.RouteNumberOffset3
                 if self.Left then self.SpecRouteNumbers.pos = self.SpecRouteNumbers.pos*TLM.SpecRouteNumberOffset2 end
-                self.Models[3]["roua"]:SetPos(self.Models[1]["roua"]:LocalToWorld(TLM.RouaOffset))
-                self.Models[3]["roua"]:SetAngles(self.Models[1]["roua"]:LocalToWorldAngles(Angle(180,0,0)))
-                self.Models[3]["roua"]:SetParent(self)
-                if self.Left then
-                    if self.Num[1] == "L" then
-                        self.Models[3]["roua"]:SetSkin(self.OldRouteNumberSetup[6]["R"] or 0)
+                if IsValid(self.Models[3]["roua"]) then
+                    self.Models[3]["roua"]:SetPos(self.Models[1]["roua"]:LocalToWorld(TLM.RouaOffset))
+                    self.Models[3]["roua"]:SetAngles(self.Models[1]["roua"]:LocalToWorldAngles(Angle(180,0,0)))
+                    self.Models[3]["roua"]:SetParent(self)
+                    if self.Left then
+                        if self.Num[1] == "L" then
+                            self.Models[3]["roua"]:SetSkin(self.OldRouteNumberSetup[6]["R"] or 0)
+                        else
+                            self.Models[3]["roua"]:SetSkin(self.OldRouteNumberSetup[6]["L"] or 0)
+                        end
                     else
-                        self.Models[3]["roua"]:SetSkin(self.OldRouteNumberSetup[6]["L"] or 0)
+                        self.Models[3]["roua"]:SetSkin(self.OldRouteNumberSetup[6][self.Num[1]] or 0)
                     end
+                    self.Models[3]["roua"]:SetRenderMode(RENDERMODE_TRANSCOLOR)
+                    self.Models[3]["roua"]:SetColor(Color(255, 255, 255, 0))
                 else
-                    self.Models[3]["roua"]:SetSkin(self.OldRouteNumberSetup[6][self.Num[1]] or 0)
+                    self.ModelsCreated = false
                 end
-                self.Models[3]["roua"]:SetRenderMode(RENDERMODE_TRANSCOLOR)
-                self.Models[3]["roua"]:SetColor(Color(255, 255, 255, 0))
             end
             if IsValid(self.Models[3]["roua"]) then
                 if State > 0 then
diff --git a/lua/entities/gmod_track_signs/cl_init.lua b/lua/entities/gmod_track_signs/cl_init.lua
index 9af9037..4f87a58 100644
--- a/lua/entities/gmod_track_signs/cl_init.lua
+++ b/lua/entities/gmod_track_signs/cl_init.lua
@@ -99,9 +99,11 @@ function ENT:Think()
 		end
 		if self.Left then pos = pos*Vector(1,-1,1) end
 		if self.Left and self.ModelProp.rotate then ang = ang-Angle(0,180,0) end
-		self.Model:SetParent(self)
-		self.Model:SetPos(self:LocalToWorld(pos))
-		self.Model:SetAngles(self:LocalToWorldAngles(ang))
+		if IsValid(self.Model) then
+			self.Model:SetParent(self)
+			self.Model:SetPos(self:LocalToWorld(pos))
+ 			self.Model:SetAngles(self:LocalToWorldAngles(ang))
+ 		end
 	end
 	return true
 end
diff --git a/lua/entities/gmod_train_special_box/cl_init.lua b/lua/entities/gmod_train_special_box/cl_init.lua
index e859770..798f860 100644
--- a/lua/entities/gmod_train_special_box/cl_init.lua
+++ b/lua/entities/gmod_train_special_box/cl_init.lua
@@ -7,6 +7,7 @@ end
 function ENT:SpawnDigit(id,i)
 
     local cent = ClientsideModel(Format("models/metrostroi_train/reversor/revers_number0%d.mdl",id),RENDERGROUP_OPAQUE)
+    if not IsValid(cent) then return end
     cent:SetParent(self)
     cent:SetPos(self:LocalToWorld(Vector(-0.65+i*0.3,0.3,4.49+i*0.005)))
     cent:SetAngles(self:LocalToWorldAngles(Angle(-1,0,0)))
@@ -24,7 +25,7 @@ function ENT:Think()
     if #self.Digits > 0 and self:GetModel()=="models/metrostroi_train/reversor/reversor_collection_box_empty.mdl" then
         self:OnRemove()
     end
-    if self.Code ~= self:GetNW2Int("Code",-1) then
+    if self.Code ~= self:GetNW2Int("Code",-1) or self:GetNW2Int("Code",-1) > 0 and (not IsValid(self.Digits[0]) or not IsValid(self.Digits[1]) or not IsValid(self.Digits[2])) then
         self:OnRemove()
         self.Code = self:GetNW2Int("Code",-1)
         if self.Code>0 then
diff --git a/lua/weapons/gmod_tool/stools/train_spawner.lua b/lua/weapons/gmod_tool/stools/train_spawner.lua
index 2ec100a..9a1d16f 100644
--- a/lua/weapons/gmod_tool/stools/train_spawner.lua
+++ b/lua/weapons/gmod_tool/stools/train_spawner.lua
@@ -102,6 +102,7 @@ end
 function TOOL:UpdateGhost()
     local good,canDraw
     for i,e in ipairs(self.GhostEntities) do
+        if not IsValid(e) then continue end
         local t = self.Model[i]
         local pos,ang
         if i==1 then
@@ -146,19 +147,20 @@ function TOOL:Think()
             self.GhostEntities = {}
             if type(self.Model) == "string" then
                 self.GhostEntities[1] = ClientsideModel(self.Model,RENDERGROUP_OPAQUE)
-                self.GhostEntities[1]:SetModel(self.Model)
+                if IsValid(self.GhostEntities[1]) then self.GhostEntities[1]:SetModel(self.Model) end
             else
                 for i,t in pairs(self.Model) do
                     if type(t) == "string" then
                         self.GhostEntities[i] = ClientsideModel(t,RENDERGROUP_OPAQUE)
-                        self.GhostEntities[i]:SetModel(t)
+                        if IsValid(self.GhostEntities[i]) then self.GhostEntities[i]:SetModel(t) end
                     else
                         self.GhostEntities[i] = ClientsideModel(t[1],RENDERGROUP_OPAQUE)
-                        self.GhostEntities[i]:SetModel(t[1])
+                        if IsValid(self.GhostEntities[i]) then self.GhostEntities[i]:SetModel(t[1]) end
                     end
                 end
             end
             for i,e in pairs(self.GhostEntities) do
+                if not IsValid(e) then continue end
                 e:SetRenderMode(RENDERMODE_TRANSALPHA)
                 e.GetBodyColor = function() return Vector(1,1,1) end
                 e.GetDirtLevel = function() return 0.25 end
diff --git a/lua/weapons/train_key/cl_init.lua b/lua/weapons/train_key/cl_init.lua
index 4362915..876883a 100644
--- a/lua/weapons/train_key/cl_init.lua
+++ b/lua/weapons/train_key/cl_init.lua
@@ -322,8 +322,8 @@ function SWEP:CreateModels( tab )
 				string.find(v.model, ".mdl") and file.Exists (v.model, "GAME") ) then
 
 			v.modelEnt = ents.CreateClientProp("models/metrostroi/81-717/reverser.mdl")
-			v.modelEnt:SetModel(v.model)
 			if (IsValid(v.modelEnt)) then
+				v.modelEnt:SetModel(v.model)
 				v.modelEnt:SetPos(self:GetPos())
 				v.modelEnt:SetAngles(self:GetAngles())
 				v.modelEnt:SetParent(self)
diff --git a/lua/weapons/train_kv_wrench/cl_init.lua b/lua/weapons/train_kv_wrench/cl_init.lua
index 67c0468..54d4faf 100644
--- a/lua/weapons/train_kv_wrench/cl_init.lua
+++ b/lua/weapons/train_kv_wrench/cl_init.lua
@@ -340,8 +340,8 @@ function SWEP:CreateModels( tab )
 				string.find(v.model, ".mdl") and file.Exists (v.model, "GAME") ) then
 
 			v.modelEnt = ents.CreateClientProp("models/metrostroi/81-717/reverser.mdl")
-			v.modelEnt:SetModel(v.model)
 			if (IsValid(v.modelEnt)) then
+				v.modelEnt:SetModel(v.model)
 				v.modelEnt:SetPos(self:GetPos())
 				v.modelEnt:SetAngles(self:GetAngles())
 				v.modelEnt:SetParent(self)
diff --git a/lua/weapons/train_kv_wrench_gold/cl_init.lua b/lua/weapons/train_kv_wrench_gold/cl_init.lua
index 61b3485..a744811 100644
--- a/lua/weapons/train_kv_wrench_gold/cl_init.lua
+++ b/lua/weapons/train_kv_wrench_gold/cl_init.lua
@@ -357,8 +357,8 @@ function SWEP:CreateModels( tab )
                 string.find(v.model, ".mdl") and file.Exists (v.model, "GAME") ) then
 
             v.modelEnt = ents.CreateClientProp("models/metrostroi/81-717/reverser.mdl")
-            v.modelEnt:SetModel(v.model)
             if (IsValid(v.modelEnt)) then
+                v.modelEnt:SetModel(v.model)
                 v.modelEnt:SetPos(self:GetPos())
                 v.modelEnt:SetAngles(self:GetAngles())
                 v.modelEnt:SetParent(self)