Description

Crash creating a new level sequence and then loading a new level

Steps to Reproduce
  1. Open a project
  2. Create a new level sequence
  3. Open the level sequence
  4. File > New level
  5. Select Default

Result: Crash

Callstack

UE4Editor_UnrealEd!UEditorEngine::CheckForWorldGCLeaks() editorserver.cpp:1836
UE4Editor_UnrealEd!UEditorEngine::EditorDestroyWorld() editorserver.cpp:1967
UE4Editor_UnrealEd!UEditorEngine::Map_Load() editorserver.cpp:2319
UE4Editor_UnrealEd!UEditorEngine::HandleMapCommand() editorserver.cpp:5998
UE4Editor_UnrealEd!UEditorEngine::Exec() editorserver.cpp:5479
UE4Editor_UnrealEd!UUnrealEdEngine::Exec() unrealedsrv.cpp:624
UE4Editor_UnrealEd!FEditorFileUtils::LoadMap() filehelpers.cpp:2178
UE4Editor_LevelEditor!FLevelEditorActionCallbacks::NewLevel() leveleditoractions.cpp:202
UE4Editor_LevelEditor!TBaseStaticDelegateInstance<void __cdecl() delegateinstancesimpl.h:1017
UE4Editor_Slate!FUICommandList::ExecuteAction() uicommandlist.cpp:92
UE4Editor_Slate!SMenuEntryBlock::OnClicked() smenuentryblock.cpp:1027
UE4Editor_Slate!SMenuEntryBlock::OnMenuItemButtonClicked() smenuentryblock.cpp:987
UE4Editor_Slate!TMemberFunctionCaller<SMenuEntryBlock,FReply() delegateinstanceinterface.h:161
UE4Editor_Slate!TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SMenuEntryBlock,FReply() tuple.h:115
UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SMenuEntryBlock,0,FReply __cdecl() delegateinstancesimpl.h:317
UE4Editor_Slate!TBaseDelegate<FReply>::Execute() delegatesignatureimpl.inl:521
UE4Editor_Slate!SButton::OnMouseButtonUp() sbutton.cpp:278
UE4Editor_Slate!SMenuEntryButton::OnMouseButtonUp() smenuentryblock.cpp:385
UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator() slateapplication.cpp:4901
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() slateapplication.cpp:215
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() slateapplication.cpp:4890
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() slateapplication.cpp:5348
UE4Editor_Slate!FSlateApplication::OnMouseUp() slateapplication.cpp:5328
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1584
UE4Editor_Core!FWindowsApplication::DeferMessage() windowsapplication.cpp:1930
UE4Editor_Core!FWindowsApplication::ProcessMessage() windowsapplication.cpp:747
UE4Editor_Core!FWindowsApplication::AppWndProc() windowsapplication.cpp:669
user32!<Unknown>
user32!<Unknown>
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() windowsplatformmisc.cpp:905
UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:2788
UE4Editor!GuardedMain() launch.cpp:156
UE4Editor!GuardedMainWrapper() launchwindows.cpp:126
UE4Editor!WinMain() launchwindows.cpp:202
UE4Editor!__scrt_common_main_seh() exe_common.inl:264
kernel32!<Unknown>
ntdll!<Unknown>

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Fixed
ComponentSequencer
Affects Versions4.13
Target Fix4.13
Fix Commit3078396
Main Commit3092051
Release Commit3078737
CreatedAug 4, 2016
ResolvedAug 5, 2016
UpdatedMay 2, 2018