Unreal Engine Issues and Bug Tracker (UE-34155)

Description

Error message:

Access violation - code c0000005 (first/second chance not available)

Source Context:

  336       	
  337       	if (bHasRotationKeys)
  338       	{
  339       		TSharedRef<FStructOnScope> KeyStruct = MakeShareable(new FStructOnScope(FMovieScene3DRotationKeyStruct::StaticStruct()));
  340       		auto Struct = (FMovieScene3DRotationKeyStruct*)KeyStruct->GetStructMemory();
  341       		{
  342       			for (int32 Index = 0; Index <= 2; ++Index)
  343       			{
  344       				if(RotationKeys[Index] != nullptr)
  345       				{
  346       					Struct->RotationKeys[Index] = RotationKeys[Index];
  347       				}
  348       			}
  349       
  350 ***** 			Struct->Rotation.Pitch = Struct->RotationKeys[0]->Value;
  351       			Struct->Rotation.Yaw = Struct->RotationKeys[1]->Value;
  352       			Struct->Rotation.Roll = Struct->RotationKeys[2]->Value;
  353       		}
  354       
  355       		return KeyStruct;
  356       	}
  357       	
  358       	if (bHasScaleKeys)
  359       	{
  360       		TSharedRef<FStructOnScope> KeyStruct = MakeShareable(new FStructOnScope(FMovieScene3DScaleKeyStruct::StaticStruct()));
  361       		auto Struct = (FMovieScene3DScaleKeyStruct*)KeyStruct->GetStructMemory();
  362       		{
  363       			for (int32 Index = 0; Index <= 2; ++Index)
  364       			{
  365       				if(ScaleKeys[Index] != nullptr)

Most recent user affected CL:
3039270

Logs:
Attached

CrashReporter User Descriptions:

EUS Matt.Williams - Testing this: https://answers.unrealengine.com/questions/461290/steps-to-reproduce-a-bug-in-sequencer.html

Steps to Reproduce

1. Create a level sequence
2. Add a camera from the menu in sequencer
3. Add a transform key to the CineCameraActor at 0 seconds
4. Right click the key and change it to Linear Interpolation
5. Expand the Transform Track, then expand rotation
6. Move to another frame (I did 25) and type a value for Rotate Z (should create a key at 25)
7. Collapse the Transform track
8. Right click on the key at 25

Result: Crash
Expected: Brings up right click menu for a key

Callstack

UE4Editor_MovieSceneTracks!UMovieScene3DTransformSection::GetKeyStruct() [moviescene3dtransformsection.cpp:351]
UE4Editor_Sequencer!FGroupedKeyArea::GetKeyStruct() [groupedkeyarea.cpp:658]
UE4Editor_Sequencer!FKeyContextMenu::CanAddPropertiesMenu() [sequencercontextmenus.cpp:169]
UE4Editor_Sequencer!FKeyContextMenu::PopulateMenu() [sequencercontextmenus.cpp:39]
UE4Editor_Sequencer!FKeyContextMenu::BuildMenu() [sequencercontextmenus.cpp:30]
UE4Editor_Sequencer!SequencerHelpers::SummonContextMenu() [sequencercommonhelpers.cpp:368]
UE4Editor_Sequencer!FSequencerEditTool_Movement::OnMouseButtonUp() [sequenceredittool_movement.cpp:215]
UE4Editor_Sequencer!FSequencerInputHandlerStack::ProcessEvent() [sequencerinputhandlerstack.h:96]
UE4Editor_Sequencer!FSequencerInputHandlerStack::HandleMouseButtonUp() [sequencerinputhandlerstack.h:55]
UE4Editor_Sequencer!SSequencerTrackArea::OnMouseButtonUp() [ssequencertrackarea.cpp:214]
UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator() [slateapplication.cpp:4598]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() [slateapplication.cpp:215]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [slateapplication.cpp:4587]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [slateapplication.cpp:5041]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [slateapplication.cpp:5021]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1510]
UE4Editor_Core!FWindowsApplication::DeferMessage() [windowsapplication.cpp:1850]
UE4Editor_Core!FWindowsApplication::ProcessMessage() [windowsapplication.cpp:745]
UE4Editor_Core!FWindowsApplication::AppWndProc() [windowsapplication.cpp:667]
user32!UserCallWinProcCheckWow()
user32!DispatchMessageWorker()
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [windowsplatformmisc.cpp:903]
UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:2729]
UE4Editor!GuardedMain() [launch.cpp:148]
UE4Editor!GuardedMainWrapper() [launchwindows.cpp:126]
UE4Editor!WinMain() [launchwindows.cpp:200]
UE4Editor!__scrt_common_main_seh() [exe_common.inl:264]
kernel32!BaseThreadInitThunk()
ntdll!RtlUserThreadStart()

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Fixed

Component	UE - Anim - Sequencer
Affects Versions	4.12, 4.13
Target Fix	4.13

Fix Commit	3077781
Main Commit	3092051
Release Commit	3077781

Created	Aug 3, 2016
Resolved	Aug 4, 2016
Updated	Apr 27, 2018

View Jira Issue

UE-34155

Crash after setting a key on a Rotation Track, then trying to right click the key with Transform track collapsed

Crash after setting a key on a Rotation Track, then trying to right click the key with Transform track collapsed

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