Unreal Engine Issues

UE-67609

[CrashReport] UE4Editor_Engine!CropRawTrack() [animsequence.cpp:1798]

[CrashReport] UE4Editor_Engine!CropRawTrack() [animsequence.cpp:1798]

Description

Comment from user in crash group

  • Tried to delete frames in an animation
Steps to Reproduce
  1. Open QAGame
  2. Open an animation with >10 frames
  3. Select a bone on the skeleton and rotate it in the viewport
  4. Click the add key button and apply to make a transform curve track
  5. Right click on the scrub bar and select the insert frame after X option to add a frame to the animation
  6. Right click on the scrub bar and select the crop track option
Callstack
Assertion failed: RawTrack.PosKeys.Num() == 1 || RawTrack.PosKeys.Num() == TotalNumOfFrames [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\Engine\Private\Animation\AnimSequence.cpp] [Line: 1797]

UE4Editor_Engine!CropRawTrack() [animsequence.cpp:1798]
UE4Editor_Engine!UAnimSequence::CropRawAnimData() [animsequence.cpp:2058]
UE4Editor_Persona!SAnimationScrubPanel::OnCropAnimSequence() [sanimationscrubpanel.cpp:481]
UE4Editor_Persona!TBaseSPMethodDelegateInstance<0,SAnimationScrubPanel,0,void __cdecl() [delegateinstancesimpl.h:355]
UE4Editor_KismetWidgets!SScrubWidget::OnSequenceCroppedCalled() [sscrubwidget.cpp:526]
UE4Editor_KismetWidgets!TBaseSPMethodDelegateInstance<0,SScrubWidget,0,void __cdecl() [delegateinstancesimpl.h:355]
UE4Editor_Slate!SMenuEntryBlock::OnClicked() [smenuentryblock.cpp:1037]
UE4Editor_Slate!SMenuEntryBlock::OnMenuItemButtonClicked() [smenuentryblock.cpp:988]
UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SMenuEntryBlock,0,FReply __cdecl() [delegateinstancesimpl.h:279]
UE4Editor_Slate!SButton::OnMouseButtonUp() [sbutton.cpp:290]
UE4Editor_Slate!SMenuEntryButton::OnMouseButtonUp() [smenuentryblock.cpp:385]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_1002768c627006711ef2f351a87ec0e7> >() [slateapplication.cpp:270]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [slateapplication.cpp:5528]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [slateapplication.cpp:6087]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [slateapplication.cpp:6060]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1831]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [windowsapplication.cpp:2281]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [windowsapplication.cpp:929]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [windowsapplication.cpp:766]
user32!UserCallWinProcCheckWow()
user32!DispatchMessageWorker()
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [windowsplatformapplicationmisc.cpp:130]
UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3615]
UE4Editor!GuardedMain() [launch.cpp:174]
UE4Editor!GuardedMainWrapper() [launchwindows.cpp:145]
UE4Editor!WinMain() [launchwindows.cpp:276]
UE4Editor!__scrt_common_main_seh() [exe_common.inl:283]
kernel32!BaseThreadInitThunk()
ntdll!RtlUserThreadStart()

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Fixed
ComponentOLD - Anim
Affects Versions4.20, 4.21, 4.22
Target Fix4.25
Fix Commit12455421
Release Commit12455421
CreatedDec 14, 2018
ResolvedMar 26, 2020
UpdatedJul 30, 2020
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