This is a trending crash coming out of the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred.
The callstack is very close to https://jira.it.epicgames.net/browse/UE-46929, which occurred in 4.18 before being fixed. [Link Removed] stated that the listed repro steps did not occur in 4.17, although a similar issue seems to exist.
Source Context
20 FBlendSpaceDetails::FBlendSpaceDetails()
21 {
22 Builder = nullptr;
23 BlendSpaceBase = nullptr;
24 Handle = FCoreUObjectDelegates::OnObjectPropertyChanged.AddLambda([this](UObject* Object, struct FPropertyChangedEvent& Event)
25 {
26 if (Builder && Object == BlendSpaceBase && (Event.Property == nullptr || (Event.MemberProperty && Event.MemberProperty->GetFName() == GET_MEMBER_NAME_CHECKED(UBlendSpaceBase, BlendParameters) && Event.Property && Event.Property->GetFName() == GET_MEMBER_NAME_CHECKED(FBlendParameter, DisplayName))))
27 {
28 ***** Builder->ForceRefreshDetails();
29 }
30 });
31 }
repro steps currently unknown
Access violation - code c0000005 (first/second chance not available) UE4Editor_Persona!<lambda_e529d88d0657fbede17be1535bc6d479>::operator() [blendspacedetails.cpp:29] UE4Editor_Persona!TBaseFunctorDelegateInstance<void __cdecl() [delegateinstancesimpl.h:1199] UE4Editor_CoreUObject!TBaseMulticastDelegate<void,UObject * __ptr64,FPropertyChangedEvent & __ptr64>::Broadcast() [delegatesignatureimpl.inl:937] UE4Editor_CoreUObject!UObject::PostEditUndo() [obj.cpp:530] UE4Editor_UnrealEd!FTransaction::Apply() [editortransaction.cpp:506] UE4Editor_UnrealEd!UTransBuffer::Undo() [editortransaction.cpp:874] UE4Editor_UnrealEd!UEditorEngine::Exec_Transaction() [editorserver.cpp:5069] UE4Editor_UnrealEd!UEditorEngine::Exec() [editorserver.cpp:5516] UE4Editor_UnrealEd!UUnrealEdEngine::Exec() [unrealedsrv.cpp:672] UE4Editor_MainFrame!FMainFrameActionCallbacks::ExecuteExecCommand() [mainframeactions.cpp:973] UE4Editor_MainFrame!TBaseStaticDelegateInstance<void __cdecl() [delegateinstancesimpl.h:1027] UE4Editor_Slate!FUICommandList::ConditionalProcessCommandBindings() [uicommandlist.cpp:216] UE4Editor_Slate!FUICommandList::ProcessCommandBindings() [uicommandlist.cpp:160] UE4Editor_MainFrame!FMainFrameActionCallbacks::OnUnhandledKeyDownEvent() [mainframeactions.cpp:211] UE4Editor_MainFrame!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<FReply() [tuple.h:497] UE4Editor_MainFrame!TBaseStaticDelegateInstance<FReply __cdecl() [delegateinstancesimpl.h:958] UE4Editor_Slate!TBaseDelegate<FReply,FKeyEvent const & __ptr64>::Execute() [delegatesignatureimpl.inl:537] UE4Editor_Slate!FSlateApplication::ProcessKeyDownEvent() [slateapplication.cpp:4782] UE4Editor_Slate!FSlateApplication::OnKeyDown() [slateapplication.cpp:4681] UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1553] UE4Editor_Core!FWindowsApplication::DeferMessage() [windowsapplication.cpp:2161] UE4Editor_Core!FWindowsApplication::ProcessMessage() [windowsapplication.cpp:881] UE4Editor_Core!FWindowsApplication::AppWndProc() [windowsapplication.cpp:721] user32!UserCallWinProcCheckWow() user32!DispatchMessageWorker() UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [windowsplatformmisc.cpp:1009] UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3151] UE4Editor!GuardedMain() [launch.cpp:166] UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134] UE4Editor!WinMain() [launchwindows.cpp:210] UE4Editor!__scrt_common_main_seh() [exe_common.inl:253] kernel32!BaseThreadInitThunk() ntdll!RtlUserThreadStart()
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-48405 in the post.
| 0 |
| Component | OLD - Anim |
|---|---|
| Affects Versions | 4.17 |
| Target Fix | 4.17.2 |
| Fix Commit | 3614979 |
|---|
| Created | Aug 14, 2017 |
|---|---|
| Resolved | Aug 29, 2017 |
| Updated | May 18, 2020 |