Description

Importing an FBX into an empty camera animation sequence crashes the editor. The import seems to fail when trying to add a camera cut track. Exporting an fbx from a camera animation sequence, deleting the camera binding, then importing the fbx is enough to repro, but I've attached an fbx too for testing.

Steps to Reproduce
  1. Create a new Camera Animation Sequence 
  2. Import an FBX onto the camera anim sequence through the actions menu
  3. Keep the default import settings (Make sure create cameras is checked)

RESULT

The editor crashes

Callstack

LoginId:df4aa6ad49b9dec39d3de7ab854188c8
EpicAccountId:51427dd6e91e4ec79b3e59d214298ef2

Assertion failed: IsValid() [Link Removed] [Line: 1008]

UnrealEditor_Sequencer!FSequencerNodeTree::FindOrAddTypeEditor() [D:\_Release5.0\Engine\Source\Editor\Sequencer\Private\SequencerNodeTree.cpp:552]
UnrealEditor_Sequencer!FSequencerNodeTree::CreateOrUpdateTrack() [D:\_Release5.0\Engine\Source\Editor\Sequencer\Private\SequencerNodeTree.cpp:287]
UnrealEditor_Sequencer!FSequencerNodeTree::RefreshNodes() [D:\_Release5.0\Engine\Source\Editor\Sequencer\Private\SequencerNodeTree.cpp:167]
UnrealEditor_Sequencer!FSequencerNodeTree::Update() [D:\_Release5.0\Engine\Source\Editor\Sequencer\Private\SequencerNodeTree.cpp:447]
UnrealEditor_Sequencer!SSequencer::UpdateLayoutTree() [D:\_Release5.0\Engine\Source\Editor\Sequencer\Private\SSequencer.cpp:2999]
UnrealEditor_Sequencer!FSequencer::RefreshTree() [D:\_Release5.0\Engine\Source\Editor\Sequencer\Private\Sequencer.cpp:2332]
UnrealEditor_Sequencer!FSequencer::AddActors() [D:\_Release5.0\Engine\Source\Editor\Sequencer\Private\Sequencer.cpp:6209]
UnrealEditor_MovieSceneTools!ImportFBXCamera() [D:\_Release5.0\Engine\Source\Editor\MovieSceneTools\Private\MovieSceneToolHelpers.cpp:3212]
UnrealEditor_MovieSceneTools!SMovieSceneImportFBXSettings::OnImportFBXClicked() [D:\_Release5.0\Engine\Source\Editor\MovieSceneTools\Private\MovieSceneToolHelpers.cpp:3401]
UnrealEditor_MovieSceneTools!TBaseSPMethodDelegateInstance<0,SMovieSceneImportFBXSettings,1,FReply __cdecl(void),FDefaultDelegateUserPolicy>::Execute() [D:\_Release5.0\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:290]
UnrealEditor_Slate!SButton::ExecuteOnClick() [D:\_Release5.0\Engine\Source\Runtime\Slate\Private\Widgets\Input\SButton.cpp:464]
UnrealEditor_Slate!SButton::OnMouseButtonUp() [D:\_Release5.0\Engine\Source\Runtime\Slate\Private\Widgets\Input\SButton.cpp:389]
UnrealEditor_Slate!<lambda_51e270ca99ea7ce852539efd04dd453f>::operator()() [D:\_Release5.0\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:4964]
UnrealEditor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_51e270ca99ea7ce852539efd04dd453f> >() [D:\_Release5.0\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:408]
UnrealEditor_Slate!FSlateApplication::RoutePointerUpEvent() [D:\_Release5.0\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:4950]
UnrealEditor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [D:\_Release5.0\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5498]
UnrealEditor_Slate!FSlateApplication::OnMouseUp() [D:\_Release5.0\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5463]
UnrealEditor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [D:\_Release5.0\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2210]
UnrealEditor_ApplicationCore!FWindowsApplication::DeferMessage() [D:\_Release5.0\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2699]
UnrealEditor_ApplicationCore!FWindowsApplication::ProcessMessage() [D:\_Release5.0\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:1078]
UnrealEditor_ApplicationCore!FWindowsApplication::AppWndProc() [D:\_Release5.0\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:916]
user32
user32
UnrealEditor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [D:\_Release5.0\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsPlatformApplicationMisc.cpp:138]
UnrealEditor!FEngineLoop::Tick() [D:\_Release5.0\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5161]
UnrealEditor!GuardedMain() [D:\_Release5.0\Engine\Source\Runtime\Launch\Private\Launch.cpp:183]
UnrealEditor!GuardedMainWrapper() [D:\_Release5.0\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:147]
UnrealEditor!LaunchWindowsStartup() [D:\_Release5.0\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:283]
UnrealEditor!WinMain() [D:\_Release5.0\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:330]
UnrealEditor!__scrt_common_main_seh() [d:\a01\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

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Fixed
ComponentUE - Anim - Sequencer
Affects Versions5.0
Target Fix5.0
Fix Commit18938477
CreatedJan 27, 2022
ResolvedFeb 10, 2022
UpdatedFeb 10, 2022