Unreal Engine Issues and Bug Tracker (UE-34169)

Description

Editor crashes when trying to force delete assets that reference each other. Blueprint 'A' contains an Actor Component of Blueprint 'B'. Crash will occur when trying to force delete both 'A' and 'B'.

Steps to Reproduce

Create/Open any Blueprint Project
Create a new Blueprint based on Actor Component (Name it: TestComp)
Create a new Blueprint based on Actor (Name it: TestBP)
Open TestBP and in the Components panel select "Add Component" and add a "TestComp"
Compile and save the blueprint
In the content browser select both TestBP and TestComp and delete the assets
Select "Force Delete" when the prompt opens.

Result: Crash

Callstack

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffff

UE4Editor-UnrealEd.dll!ObjectTools::ForceDeleteObjects() [d:\builds\samuel.proctor_switcher\engine\source\editor\unrealed\private\objecttools.cpp:2098]
UE4Editor-UnrealEd.dll!FAssetDeleteModel::DoForceDelete() [d:\builds\samuel.proctor_switcher\engine\source\editor\unrealed\private\assetdeletemodel.cpp:284]
UE4Editor-UnrealEd.dll!SDeleteAssetsDialog::ForceDelete() [d:\builds\samuel.proctor_switcher\engine\source\editor\unrealed\private\dialogs\sdeleteassetsdialog.cpp:705]
UE4Editor-UnrealEd.dll!TMemberFunctionCaller<SDeleteAssetsDialog,FReply (__cdecl SDeleteAssetsDialog::*)(void) __ptr64>::operator()<>() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\public\delegates\delegateinstanceinterface.h:161]
UE4Editor-UnrealEd.dll!TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SDeleteAssetsDialog,FReply (__cdecl SDeleteAssetsDialog::*)(void) __ptr64> >() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\public\delegates\tuple.h:115]
UE4Editor-UnrealEd.dll!TBaseSPMethodDelegateInstance<0,SDeleteAssetsDialog,0,FReply __cdecl(void)>::Execute() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:317]
UE4Editor-Slate.dll!TBaseDelegate<FReply>::Execute() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:521]
UE4Editor-Slate.dll!SButton::OnMouseButtonUp() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:278]
UE4Editor-Slate.dll!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator()() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4931]
UE4Editor-Slate.dll!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:215]
UE4Editor-Slate.dll!FSlateApplication::RoutePointerUpEvent() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4920]
UE4Editor-Slate.dll!FSlateApplication::ProcessMouseButtonUpEvent() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5378]
UE4Editor-Slate.dll!FSlateApplication::OnMouseUp() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5358]
UE4Editor-Core.dll!FWindowsApplication::ProcessDeferredMessage() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\private\windows\windowsapplication.cpp:1631]
UE4Editor-Core.dll!FWindowsApplication::DeferMessage() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\private\windows\windowsapplication.cpp:1977]
UE4Editor-Core.dll!FWindowsApplication::ProcessMessage() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\private\windows\windowsapplication.cpp:750]
UE4Editor-Core.dll!FWindowsApplication::AppWndProc() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\private\windows\windowsapplication.cpp:672]
USER32.dll
USER32.dll
UE4Editor-Core.dll!FWindowsApplication::PumpMessages() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\private\windows\windowsapplication.cpp:1989]
UE4Editor-Slate.dll!FSlateApplication::TickPlatform() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1483]
UE4Editor-Slate.dll!FSlateApplication::AddModalWindow() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1987]
UE4Editor-UnrealEd.dll!UEditorEngine::EditorAddModalWindow() [d:\builds\samuel.proctor_switcher\engine\source\editor\unrealed\private\editorengine.cpp:3588]
UE4Editor-UnrealEd.dll!ObjectTools::DeleteObjects() [d:\builds\samuel.proctor_switcher\engine\source\editor\unrealed\private\objecttools.cpp:1698]
UE4Editor-UnrealEd.dll!ObjectTools::DeleteAssets() [d:\builds\samuel.proctor_switcher\engine\source\editor\unrealed\private\objecttools.cpp:1605]
UE4Editor-ContentBrowser.dll!FAssetContextMenu::ExecuteDelete() [d:\builds\samuel.proctor_switcher\engine\source\editor\contentbrowser\private\assetcontextmenu.cpp:1784]
UE4Editor-ContentBrowser.dll!SContentBrowser::HandleDeleteCommandExecute() [d:\builds\samuel.proctor_switcher\engine\source\editor\contentbrowser\private\scontentbrowser.cpp:1972]
UE4Editor-ContentBrowser.dll!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,TTypeWrapper<void> __cdecl(void)>::Execute() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:317]
UE4Editor-ContentBrowser.dll!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,void __cdecl(void)>::ExecuteIfSafe() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:424]
UE4Editor-Slate.dll!FUICommandList::ExecuteAction() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\commands\uicommandlist.cpp:92]
UE4Editor-Slate.dll!SMenuEntryBlock::OnClicked() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:1027]
UE4Editor-Slate.dll!SMenuEntryBlock::OnMenuItemButtonClicked() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:987]
UE4Editor-Slate.dll!TMemberFunctionCaller<SMenuEntryBlock,FReply (__cdecl SMenuEntryBlock::*)(void) __ptr64>::operator()<>() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\public\delegates\delegateinstanceinterface.h:161]
UE4Editor-Slate.dll!TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SMenuEntryBlock,FReply (__cdecl SMenuEntryBlock::*)(void) __ptr64> >() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\public\delegates\tuple.h:115]
UE4Editor-Slate.dll!TBaseSPMethodDelegateInstance<0,SMenuEntryBlock,0,FReply __cdecl(void)>::Execute() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:317]
UE4Editor-Slate.dll!TBaseDelegate<FReply>::Execute() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:521]
UE4Editor-Slate.dll!SButton::OnMouseButtonUp() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:278]
UE4Editor-Slate.dll!SMenuEntryButton::OnMouseButtonUp() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:385]
UE4Editor-Slate.dll!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator()() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4931]
UE4Editor-Slate.dll!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:215]
UE4Editor-Slate.dll!FSlateApplication::RoutePointerUpEvent() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4920]
UE4Editor-Slate.dll!FSlateApplication::ProcessMouseButtonUpEvent() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5378]
UE4Editor-Slate.dll!FSlateApplication::OnMouseUp() [d:\builds\samuel.proctor_switcher\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5358]
UE4Editor-Core.dll!FWindowsApplication::ProcessDeferredMessage() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\private\windows\windowsapplication.cpp:1631]
UE4Editor-Core.dll!FWindowsApplication::DeferMessage() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\private\windows\windowsapplication.cpp:1977]
UE4Editor-Core.dll!FWindowsApplication::ProcessMessage() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\private\windows\windowsapplication.cpp:750]
UE4Editor-Core.dll!FWindowsApplication::AppWndProc() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\private\windows\windowsapplication.cpp:672]
USER32.dll
USER32.dll
UE4Editor-Core.dll!FWindowsPlatformMisc::PumpMessages() [d:\builds\samuel.proctor_switcher\engine\source\runtime\core\private\windows\windowsplatformmisc.cpp:905]
UE4Editor.exe!FEngineLoop::Tick() [d:\builds\samuel.proctor_switcher\engine\source\runtime\launch\private\launchengineloop.cpp:2795]
UE4Editor.exe!GuardedMain() [d:\builds\samuel.proctor_switcher\engine\source\runtime\launch\private\launch.cpp:156]
UE4Editor.exe!GuardedMainWrapper() [d:\builds\samuel.proctor_switcher\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor.exe!WinMain() [d:\builds\samuel.proctor_switcher\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor.exe!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253]
kernel32.dll
ntdll.dll
ntdll.dll

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Fixed

Component	UE - Gameplay - Blueprint
Affects Versions	4.13
Target Fix	4.13

Fix Commit	3078952
Main Commit	3092051
Release Commit	3078952

Created	Aug 3, 2016
Resolved	Aug 5, 2016
Updated	Apr 27, 2018

View Jira Issue

UE-34169

Crash when force deleting blueprints that reference each other

Crash when force deleting blueprints that reference each other

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