While AdHoc testing in //UE4/Release-4.16 CL 3437809 in Binary – I found that deleting the projectBP folder of any Template project causes an ensure. I believe this issue is due a step in the garbage collection process.
Result:
Editor deletes content of folder and hit an ensure.
Expected Result:
Editor deletes content of folder with no errors.
Frequency:
5/5 - 100%
UE4Editor_UnrealEd!ObjectTools::ForceDeleteObjects() objecttools.cpp:2314 UE4Editor_UnrealEd!FAssetDeleteModel::DoForceDelete() assetdeletemodel.cpp:316 UE4Editor_UnrealEd!SDeleteAssetsDialog::ForceDelete() sdeleteassetsdialog.cpp:717 UE4Editor_UnrealEd!TMemberFunctionCaller<SDeleteAssetsDialog,FReply() delegateinstanceinterface.h:165 UE4Editor_UnrealEd!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SDeleteAssetsDialog,FReply() tuple.h:497 UE4Editor_UnrealEd!TBaseSPMethodDelegateInstance<0,SDeleteAssetsDialog,0,FReply __cdecl() delegateinstancesimpl.h:327 UE4Editor_Slate!TBaseDelegate<FReply>::Execute() delegatesignatureimpl.inl:537 UE4Editor_Slate!SButton::OnMouseButtonUp() sbutton.cpp:278 UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator() slateapplication.cpp:5049 UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() slateapplication.cpp:239 UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() slateapplication.cpp:5038 UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() slateapplication.cpp:5515 UE4Editor_Slate!FSlateApplication::OnMouseUp() slateapplication.cpp:5495 UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1704 UE4Editor_Core!FWindowsApplication::DeferMessage() windowsapplication.cpp:2127 UE4Editor_Core!FWindowsApplication::ProcessMessage() windowsapplication.cpp:867 UE4Editor_Core!FWindowsApplication::AppWndProc() windowsapplication.cpp:714 user32!<Unknown> user32!<Unknown> UE4Editor_Core!FWindowsApplication::PumpMessages() windowsapplication.cpp:2139 UE4Editor_Slate!FSlateApplication::TickPlatform() slateapplication.cpp:1570 UE4Editor_Slate!FSlateApplication::AddModalWindow() slateapplication.cpp:2048 UE4Editor_UnrealEd!UEditorEngine::EditorAddModalWindow() editorengine.cpp:3820 UE4Editor_UnrealEd!ObjectTools::DeleteObjects() objecttools.cpp:1827 UE4Editor_ContentBrowser!ContentBrowserUtils::DeleteFolders() contentbrowserutils.cpp:581 UE4Editor_ContentBrowser!FAssetContextMenu::ExecuteDeleteFolderConfirmed() assetcontextmenu.cpp:1917 UE4Editor_ContentBrowser!TMemberFunctionCaller<FAssetContextMenu,FReply() delegateinstanceinterface.h:165 UE4Editor_ContentBrowser!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<FAssetContextMenu,FReply() tuple.h:497 UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,FAssetContextMenu,0,FReply __cdecl() delegateinstancesimpl.h:327 UE4Editor_ContentBrowser!TBaseDelegate<FReply>::Execute() delegatesignatureimpl.inl:537 UE4Editor_ContentBrowser!SContentBrowserConfirmPopup::YesClicked() contentbrowserutils.cpp:248 UE4Editor_ContentBrowser!TMemberFunctionCaller<SContentBrowserConfirmPopup,FReply() delegateinstanceinterface.h:165 UE4Editor_ContentBrowser!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SContentBrowserConfirmPopup,FReply() tuple.h:497 UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowserConfirmPopup,0,FReply __cdecl() delegateinstancesimpl.h:327 UE4Editor_Slate!TBaseDelegate<FReply>::Execute() delegatesignatureimpl.inl:537 UE4Editor_Slate!SButton::OnMouseButtonUp() sbutton.cpp:278 UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator() slateapplication.cpp:5049 UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() slateapplication.cpp:239 UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() slateapplication.cpp:5038 UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() slateapplication.cpp:5515 UE4Editor_Slate!FSlateApplication::OnMouseUp() slateapplication.cpp:5495 UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1704 UE4Editor_Core!FWindowsApplication::DeferMessage() windowsapplication.cpp:2127 UE4Editor_Core!FWindowsApplication::ProcessMessage() windowsapplication.cpp:867 UE4Editor_Core!FWindowsApplication::AppWndProc() windowsapplication.cpp:714 user32!<Unknown> user32!<Unknown> UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() windowsplatformmisc.cpp:1009 UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:3058 UE4Editor!GuardedMain() launch.cpp:166 UE4Editor!GuardedMainWrapper() launchwindows.cpp:134 UE4Editor!WinMain() launchwindows.cpp:210 UE4Editor!__scrt_common_main_seh() exe_common.inl:264 kernel32!<Unknown> ntdll!<Unknown>
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