Reported by a customer while testing USD import. See additional URL
Actual result: The editor crashes
Expected result: No crash
Additional repros:
UnrealEditor-UnrealEd.dll!SharedPointerInternals::FSharedReferencer<1>::FSharedReferencer<1>(const SharedPointerInternals::FWeakReferencer<1> & InWeakReference) Line 507 C+ UnrealEditor-UnrealEd.dll!SharedPointerInternals::FSharedReferencer<1>::FSharedReferencer<1>(const SharedPointerInternals::FWeakReferencer<1> & InWeakReference) Line 507 C [Inline Frame] UnrealEditor-UnrealEd.dll!TSharedPtr<ILevelEditor,1>::{ctor}(const TWeakPtr<ILevelEditor,1> &) Line 1127 C [Inline Frame] UnrealEditor-UnrealEd.dll!TWeakPtr<ILevelEditor,1>::Pin() Line 1406 C UnrealEditor-UnrealEd.dll!UUnrealEdEngine::Exec_Actor(UWorld * InWorld, const wchar_t * Str, FOutputDevice & Ar) Line 2447 C UnrealEditor-UnrealEd.dll!UUnrealEdEngine::Exec(UWorld * InWorld, const wchar_t * Stream, FOutputDevice & Ar) Line 722 C UnrealEditor-UnrealEd.dll!UEditorEngine::HandleDeleteCommand(const wchar_t * Str, FOutputDevice & Ar, UWorld * InWorld) Line 6261 C UnrealEditor-UnrealEd.dll!UEditorEngine::Exec(UWorld * InWorld, const wchar_t * Stream, FOutputDevice & Ar) Line 5739 C UnrealEditor-UnrealEd.dll!UUnrealEdEngine::Exec(UWorld * InWorld, const wchar_t * Stream, FOutputDevice & Ar) Line 659 C UnrealEditor-SceneOutliner.dll!FActorBrowsingMode::OnKeyDown(const FKeyEvent & InKeyEvent) Line 821 C UnrealEditor-SceneOutliner.dll!SSceneOutliner::OnKeyDown(const FGeometry & MyGeometry, const FKeyEvent & InKeyEvent) Line 2007 C [Inline Frame] UnrealEditor-Slate.dll!FSlateApplication::ProcessKeyDownEvent::_l22::<lambda_9dc931af886a2950ba18f18a6edc755e>::operator()(const FArrangedWidget &) Line 4455 C UnrealEditor-Slate.dll!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FKeyEvent,<lambda_9dc931af886a2950ba18f18a6edc755e>>(FSlateApplication * ThisApplication, FEventRouter::FBubblePolicy RoutingPolicy, FKeyEvent EventCopy, const FSlateApplication::ProcessKeyDownEvent::l22::<lambda_9dc931af886a2950ba18f18a6edc755e> & Lambda, ESlateDebuggingInputEvent DebuggingInputEvent) Line 410 C [Inline Frame] UnrealEditor-Slate.dll!FEventRouter::RouteAlongFocusPath(FSlateApplication *) Line 379 C UnrealEditor-Slate.dll!FSlateApplication::ProcessKeyDownEvent(const FKeyEvent & InKeyEvent) Line 4451 C UnrealEditor-Slate.dll!FSlateApplication::OnKeyDown(const int KeyCode, const unsigned int CharacterCode, const bool IsRepeat) Line 4362 C UnrealEditor-ApplicationCore.dll!FWindowsApplication::ProcessDeferredMessage(const FDeferredWindowsMessage & DeferredMessage) Line 2045 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 2699 C UnrealEditor-ApplicationCore.dll!FWindowsApplication::ProcessMessage(HWND_ * hwnd, unsigned int msg, unsigned _int64 wParam, __int64 lParam) Line 1078 C [Inline Frame] UnrealEditor-ApplicationCore.dll!WindowsApplication_WndProc(HWND_ *) Line 910 C UnrealEditor-ApplicationCore.dll!FWindowsApplication::AppWndProc(HWND__ * hwnd, unsigned int msg, unsigned _int64 wParam, __int64 lParam) Line 916 C [External Code] [Inline Frame] UnrealEditor-ApplicationCore.dll!WinPumpMessages() Line 109 C UnrealEditor-ApplicationCore.dll!FWindowsPlatformApplicationMisc::PumpMessages(bool bFromMainLoop) Line 138 C UnrealEditor.exe!FEngineLoop::Tick() Line 5139 C [Inline Frame] UnrealEditor.exe!EngineTick() Line 62 C UnrealEditor.exe!GuardedMain(const wchar_t * CmdLine) Line 183 C UnrealEditor.exe!LaunchWindowsStartup(HINSTANCE_ * hInInstance, HINSTANCE__ * hPrevInstance, char * _formal, int nCmdShow, const wchar_t * CmdLine) Line 272 C UnrealEditor.exe!WinMain(HINSTANCE_ * hInInstance, HINSTANCE__ * hPrevInstance, char * pCmdLine, int nCmdShow) Line 330 C+ [External Code]
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-149401 in the post.