From licensee:
Hello! Our level streaming setup enables the bUseActorFolders on our levels. When moving the Actor into another folder via the Outline, the editor will crash on the next load
Assertion failed: FoundSet && FoundSet->GetActorFolders().Num() > 1 && FoundSet->GetActorFolders().Contains(Folder) [Link Removed] [Line: 2869]
After debugging it, the property
UPROPERTY(Transient)
TMap<FString, FActorFolderSet> FolderLabelToActorFolders;
is not re-initialized with the level ActorFolders when loading the level, the FixupActorFolders function will assert because the list is empty. I fixed it by adding this to the ULevel::FixupActorFolders() function
ForEachActorFolder([this](UActorFolder* ActorFolder)
{
FActorFolderSet& Folders = FolderLabelToActorFolders.FindOrAdd(ActorFolder->GetLabel());
Folders.Add(ActorFolder);
return true;
}, /bSkipDeleted/ true);
> UnrealEditor-Engine.dll!ULevel::FixupActorFolders() Line 2894 C++ UnrealEditor-Engine.dll!ULevel::OnLevelLoaded() Line 2975 C++ UnrealEditor-Engine.dll!UWorld::InitWorld(const FWorldInitializationValues IVS) Line 1951 C++ UnrealEditor-UnrealEd.dll!UEditorEngine::Map_Load(const wchar_t * Str, FOutputDevice & Ar) Line 2793 C++ UnrealEditor-UnrealEd.dll!UEditorEngine::HandleMapCommand(const wchar_t * Str, FOutputDevice & Ar, UWorld * InWorld) Line 6298 C++ UnrealEditor-UnrealEd.dll!UEditorEngine::Exec_Editor(UWorld * InWorld, const wchar_t * Stream, FOutputDevice & Ar) Line 5759 C++ UnrealEditor-Core.dll!FExec::Exec(UWorld * InWorld, const wchar_t * Cmd, FOutputDevice & Ar) Line 15 C++ UnrealEditor-Engine.dll!UEngine::Exec(UWorld * InWorld, const wchar_t * Cmd, FOutputDevice & Ar) Line 4624 C++ UnrealEditor-UnrealEd.dll!UUnrealEdEngine::Exec(UWorld * InWorld, const wchar_t * Stream, FOutputDevice & Ar) Line 662 C++ UnrealEditor-UnrealEd.dll!FEditorFileUtils::LoadMap(const FString & InFilename, bool LoadAsTemplate, const bool bShowProgress) Line 2901 C++ UnrealEditor-LevelEditor.dll!FLevelEditorActionCallbacks::OpenRecentFile(int RecentFileIndex) Line 319 C++ [Inline Frame] UnrealEditor-LevelEditor.dll!Invoke(void(*)(int) &) Line 47 C++ [Inline Frame] UnrealEditor-LevelEditor.dll!UE::Core::Private::Tuple::TTupleBase<TIntegerSequence<unsigned int,0>,int>::ApplyAfter(void(*)(int) &) Line 311 C++ UnrealEditor-LevelEditor.dll!TBaseStaticDelegateInstance<void __cdecl(void),FDefaultDelegateUserPolicy,int>::ExecuteIfSafe() Line 658 C++ UnrealEditor-Slate.dll!FUICommandList::ExecuteAction(const TSharedRef<FUICommandInfo const ,1> InUICommandInfo) Line 117 C++ UnrealEditor-Slate.dll!SMenuEntryBlock::OnClicked(bool bCheckBoxClicked) Line 1158 C++ UnrealEditor-Slate.dll!SMenuEntryBlock::OnMenuItemButtonClicked() Line 1118 C++ [Inline Frame] UnrealEditor-Slate.dll!Invoke(FReply(SMenuEntryBlock::*)()) Line 66 C++ [Inline Frame] UnrealEditor-Slate.dll!UE::Core::Private::Tuple::TTupleBase<TIntegerSequence<unsigned int>>::ApplyAfter(FReply(SMenuEntryBlock::*)() &) Line 311 C++ UnrealEditor-Slate.dll!TBaseSPMethodDelegateInstance<0,SMenuEntryBlock,1,FReply __cdecl(void),FDefaultDelegateUserPolicy>::Execute() Line 275 C++ [Inline Frame] UnrealEditor-Slate.dll!TDelegate<FReply __cdecl(void),FDefaultDelegateUserPolicy>::Execute() Line 632 C++ UnrealEditor-Slate.dll!SButton::ExecuteOnClick() Line 465 C++ UnrealEditor-Slate.dll!SButton::OnMouseButtonUp(const FGeometry & MyGeometry, const FPointerEvent & MouseEvent) Line 390 C++ UnrealEditor-Slate.dll!SMenuEntryButton::OnMouseButtonUp(const FGeometry & MyGeometry, const FPointerEvent & MouseEvent) Line 434 C++ [Inline Frame] UnrealEditor-Slate.dll!FSlateApplication::RoutePointerUpEvent::__l8::<lambda_2>::operator()(const FArrangedWidget &) Line 5134 C++ UnrealEditor-Slate.dll!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,`FSlateApplication::RoutePointerUpEvent'::`8'::<lambda_2>>(FSlateApplication * ThisApplication, FEventRouter::FToLeafmostPolicy RoutingPolicy, FPointerEvent EventCopy, const FSlateApplication::RoutePointerUpEvent::__l8::<lambda_2> & Lambda, ESlateDebuggingInputEvent DebuggingInputEvent) Line 427 C++ UnrealEditor-Slate.dll!FSlateApplication::RoutePointerUpEvent(const FWidgetPath & WidgetsUnderPointer, const FPointerEvent & PointerEvent) Line 5120 C++ UnrealEditor-Slate.dll!FSlateApplication::ProcessMouseButtonUpEvent(const FPointerEvent & MouseEvent) Line 5689 C++ UnrealEditor-Slate.dll!FSlateApplication::OnMouseUp(const EMouseButtons::Type Button, const UE::Math::TVector2<double> CursorPos) Line 5654 C++ UnrealEditor-ApplicationCore.dll!FWindowsApplication::ProcessDeferredMessage(const FDeferredWindowsMessage & DeferredMessage) Line 2219 C++ UnrealEditor-ApplicationCore.dll!FWindowsApplication::DeferMessage(TSharedPtr<FWindowsWindow,1> & NativeWindow, HWND__ * InHWnd, unsigned int InMessage, unsigned __int64 InWParam, __int64 InLParam, int MouseX, int MouseY, unsigned int RawInputFlags) Line 2726 C++ UnrealEditor-ApplicationCore.dll!FWindowsApplication::ProcessMessage(HWND__ * hwnd, unsigned int msg, unsigned __int64 wParam, __int64 lParam) Line 1895 C++ [Inline Frame] UnrealEditor-ApplicationCore.dll!WindowsApplication_WndProc(HWND__ *) Line 919 C++ UnrealEditor-ApplicationCore.dll!FWindowsApplication::AppWndProc(HWND__ * hwnd, unsigned int msg, unsigned __int64 wParam, __int64 lParam) Line 925 C++ user32.dll!UserCallWinProcCheckWow() Unknown user32.dll!DispatchMessageWorker() Unknown [Inline Frame] UnrealEditor-ApplicationCore.dll!WinPumpMessages() Line 113 C++ UnrealEditor-ApplicationCore.dll!FWindowsPlatformApplicationMisc::PumpMessages(bool bFromMainLoop) Line 142 C++ UnrealEditor.exe!FEngineLoop::Tick() Line 5736 C++ [Inline Frame] UnrealEditor.exe!EngineTick() Line 61 C++ UnrealEditor.exe!GuardedMain(const wchar_t * CmdLine) Line 188 C++ UnrealEditor.exe!LaunchWindowsStartup(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * __formal, int nCmdShow, const wchar_t * CmdLine) Line 233 C++ UnrealEditor.exe!WinMain(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * pCmdLine, int nCmdShow) Line 284 C++ [Inline Frame] UnrealEditor.exe!invoke_main() Line 102 C++ UnrealEditor.exe!__scrt_common_main_seh() Line 288 C++ kernel32.dll!BaseThreadInitThunk () Unknown ntdll.dll!RtlUserThreadStart () Unknown
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-179298 in the post.
| 0 |
| Component | UE - World Creation - Worldbuilding Tools - OFPA |
|---|---|
| Affects Versions | 5.2 |
| Target Fix | 5.3 |
| Created | Mar 7, 2023 |
|---|---|
| Resolved | Mar 10, 2023 |
| Updated | Apr 29, 2023 |