The MiningBuilding Blueprint in this user's project will not compile. Clicking the compile button never switches it to "Good to Go", and a warning that it needs to be compiled appears at PIE.
Reproduced in 4.7.3 binary. In Main (//depot/UE4/Promotable-CL-2482603), after cleaning up some unneeded Cast nodes that prevent compilation, compiling crashes the editor:
Crash Report:
[Link Removed]
Call Stack:
UE4Editor_Engine! FBodyInstance::SetBodyTransform() bodyinstance.cpp:2402 UE4Editor_Engine! UInstancedStaticMeshComponent::UpdateInstanceTransform() instancedstaticmesh.cpp:1362 UE4Editor_Engine! UInstancedStaticMeshComponent::execUpdateInstanceTransform() instancedstaticmeshcomponent.h:66 UE4Editor_CoreUObject! UFunction::Invoke() class.cpp:3778 UE4Editor_CoreUObject! UObject::CallFunction() scriptcore.cpp:412 UE4Editor_CoreUObject! UObject::ProcessContextOpcode() scriptcore.cpp:1496 UE4Editor_CoreUObject! UObject::execLetBool() scriptcore.cpp:1415 UE4Editor_CoreUObject! UObject::ProcessInternal() scriptcore.cpp:619 UE4Editor_CoreUObject! UObject::CallFunction() scriptcore.cpp:533 UE4Editor_CoreUObject! UObject::ProcessInternal() scriptcore.cpp:619 UE4Editor_CoreUObject! UFunction::Invoke() class.cpp:3778 UE4Editor_CoreUObject! UObject::ProcessEvent() scriptcore.cpp:969 UE4Editor_Engine! AActor::ProcessEvent() actor.cpp:515 UE4Editor_Engine! AActor::ProcessUserConstructionScript() actorconstruction.cpp:515 UE4Editor_Engine! AActor::ExecuteConstruction() actorconstruction.cpp:463 UE4Editor_Engine! AActor::PostSpawnInitialize() actor.cpp:2327 UE4Editor_Engine! UWorld::SpawnActor() levelactor.cpp:337 UE4Editor_Kismet! FBlueprintEditor::UpdatePreviewActor() blueprinteditor.cpp:7255 UE4Editor_Kismet! FBlueprintEditor::Tick() blueprinteditor.cpp:6277 UE4Editor_UnrealEd! FTickableEditorObject::TickObjects() tickableeditorobject.h:15 UE4Editor_UnrealEd! UEditorEngine::Tick() editor.cpp:1118 UE4Editor_UnrealEd! UUnrealEdEngine::Tick() unrealedengine.cpp:355 UE4Editor! FEngineLoop::Tick() launchengineloop.cpp:2328 UE4Editor! GuardedMain() launch.cpp:142 UE4Editor! GuardedMainWrapper() launchwindows.cpp:126 UE4Editor! WinMain() launchwindows.cpp:249
1. Download and open the user's project (see comments)
2. Open the MiningBuilding Blueprint
3. Click the Compile button
4. PIE
Result:
The Compile button will remain "dirty", and a warning will appear asking to compile the BP at PIE.
In Main, the Cast nodes that prevent compilation need to be removed. Clicking Compile will then crash the editor.
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| 0 |
| Component | UE - Simulation - Physics |
|---|---|
| Affects Versions | 4.7.3, 4.8 |
| Target Fix | 4.8 |
| Created | Mar 18, 2015 |
|---|---|
| Resolved | Apr 30, 2015 |
| Updated | Apr 27, 2018 |