Steps to Reproduce

This editor crash has occurred for many users, but only on the VRFunhouse project. It has occurred since the 4.14 release. Users have not provided any descriptions of their actions when the crash occurred.

Source Context

 949       void UObject::ConditionalPostLoad()
  950       {
  951       	check(!GEventDrivenLoaderEnabled || !HasAnyFlags(RF_NeedLoad)); //@todoio Added this as "nicks rule"
  952       									  // PostLoad only if the object needs it and has already been serialized
  953       	//@todoio note this logic should be unchanged compared to main
  954 ***** 	if (HasAnyFlags(RF_NeedPostLoad))
  955       	{
  956       
  957       		check(IsInGameThread() || HasAnyFlags(RF_ClassDefaultObject|RF_ArchetypeObject) || IsPostLoadThreadSafe() || IsA(UClass::StaticClass()))
  958       
  959       #if !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
  960       		FUObjectThreadContext& ThreadContext = FUObjectThreadContext::Get();
  961       		checkSlow(!ThreadContext.DebugPostLoad.Contains(this));
  962       		ThreadContext.DebugPostLoad.Add(this);
  963       #endif
  964       		ClearFlags( RF_NeedPostLoad );
Callstack
Access violation - code c0000005 (first/second chance not available)

UE4Editor_CoreUObject!UObject::ConditionalPostLoad() [obj.cpp:955]
UE4Editor_Engine!UParticleLODLevel::PostLoad() [particlecomponents.cpp:324]
UE4Editor_CoreUObject!UObject::ConditionalPostLoad() [obj.cpp:988]
UE4Editor_Engine!UParticleEmitter::PostLoad() [particlecomponents.cpp:932]
UE4Editor_Engine!UParticleSpriteEmitter::PostLoad() [particlecomponents.cpp:1810]
UE4Editor_CoreUObject!UObject::ConditionalPostLoad() [obj.cpp:988]
UE4Editor_Engine!UParticleSystem::PostLoad() [particlecomponents.cpp:2225]
UE4Editor_CoreUObject!UObject::ConditionalPostLoad() [obj.cpp:988]
UE4Editor_CoreUObject!FAsyncPackage::PostLoadObjects() [asyncloading.cpp:6253]
UE4Editor_CoreUObject!FAsyncPackage::TickAsyncPackage() [asyncloading.cpp:5523]
UE4Editor_CoreUObject!FAsyncLoadingThread::ProcessAsyncLoading() [asyncloading.cpp:4477]
UE4Editor_CoreUObject!FAsyncLoadingThread::TickAsyncThread() [asyncloading.cpp:4971]
UE4Editor_CoreUObject!FAsyncLoadingThread::TickAsyncLoading() [asyncloading.cpp:4706]
UE4Editor_CoreUObject!FlushAsyncLoading() [asyncloading.cpp:6757]
UE4Editor_Engine!ULevelStreaming::RequestLevel() [levelstreaming.cpp:541]
UE4Editor_Engine!UWorld::UpdateLevelStreamingInner() [world.cpp:2839]
UE4Editor_Engine!UWorld::UpdateLevelStreaming() [world.cpp:2918]
UE4Editor_Engine!UWorld::FlushLevelStreaming() [world.cpp:2952]
UE4Editor_UnrealEd!UEditorEngine::Map_Load() [editorserver.cpp:2596]
UE4Editor_UnrealEd!UEditorEngine::HandleMapCommand() [editorserver.cpp:5968]
UE4Editor_UnrealEd!UEditorEngine::Exec() [editorserver.cpp:5445]
UE4Editor_UnrealEd!UUnrealEdEngine::Exec() [unrealedsrv.cpp:672]
UE4Editor_UnrealEd!FEditorFileUtils::LoadMap() [filehelpers.cpp:2229]
UE4Editor_UnrealEd!FEditorFileUtils::LoadDefaultMapAtStartup() [filehelpers.cpp:3477]
UE4Editor_UnrealEd!FUnrealEdMisc::OnInit() [unrealedmisc.cpp:348]
UE4Editor_UnrealEd!EditorInit() [unrealedglobals.cpp:97]
UE4Editor!GuardedMain() [launch.cpp:150]
UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134]
UE4Editor!WinMain() [launchwindows.cpp:210]
UE4Editor!__scrt_common_main_seh() [exe_common.inl:253]
kernel32!BaseThreadInitThunk()
ntdll!RtlUserThreadStart()

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Backlogged
ComponentRendering - Cascade
Affects Versions4.144.154.164.174.18
Target Fix4.24
CreatedNov 10, 2017
UpdatedJul 11, 2019