Unreal Engine Issues and Bug Tracker (UE-145913)

Description

Adding a track for LayerData.Offset throws an ensure that states "No default blender class specified on property, and no custom blender specified on entities. Falling back to float blender." This does not occur in 4.27.

Steps to Reproduce

Create or open a project made with Preview 2
Create a new User Widget Blueprint
Add a Canvas panel
Add an Image to the Canvas panel
Create a new Animation
Add a new track of All Named Widgets>Image(Canvas Panel Slot)
Add a new track from the CanvasPanelSlot of LayerData.Offset
Look at the the output log

Expected Results:
No errors in the output log.

Actual Results:
Ensure is thrown "No default blender class specified on property, and no custom blender specified on entities. Falling back to float blender."

Callstack

LogOutputDevice: Error: === Handled ensure: ===
LogOutputDevice: Error: Ensure condition failed: BlenderClass [File:D:\build\++UE5\Sync\Engine\Source\Runtime\MovieSceneTracks\Private\Systems\MovieScenePropertyInstantiator.cpp] [Line: 452]
LogOutputDevice: Error: No default blender class specified on property, and no custom blender specified on entities. Falling back to float blender.
LogOutputDevice: Error: Stack: 
LogOutputDevice: Error: [Callstack] 0x00007ffbdaab7437 UnrealEditor-MovieSceneTracks.dll!UMovieScenePropertyInstantiatorSystem::InitializeBlendPath() [D:\build\++UE5\Sync\Engine\Source\Runtime\MovieSceneTracks\Private\Systems\MovieScenePropertyInstantiator.cpp:452]
LogOutputDevice: Error: [Callstack] 0x00007ffbdaacc15a UnrealEditor-MovieSceneTracks.dll!UMovieScenePropertyInstantiatorSystem::ProcessInvalidatedProperties() [D:\build\++UE5\Sync\Engine\Source\Runtime\MovieSceneTracks\Private\Systems\MovieScenePropertyInstantiator.cpp:257]
LogOutputDevice: Error: [Callstack] 0x00007ffbdaac65b4 UnrealEditor-MovieSceneTracks.dll!UMovieScenePropertyInstantiatorSystem::OnRun() [D:\build\++UE5\Sync\Engine\Source\Runtime\MovieSceneTracks\Private\Systems\MovieScenePropertyInstantiator.cpp:127]
LogOutputDevice: Error: [Callstack] 0x00007ffbdadb7993 UnrealEditor-MovieScene.dll!UMovieSceneEntitySystem::Run() [D:\build\++UE5\Sync\Engine\Source\Runtime\MovieScene\Private\EntitySystem\MovieSceneEntitySystem.cpp:361]
LogOutputDevice: Error: [Callstack] 0x00007ffbdad3329f UnrealEditor-MovieScene.dll!FMovieSceneEntitySystemGraph::ExecutePhase<TArray<unsigned short,TSizedInlineAllocator<8,32,TSizedDefaultAllocator<32> > > >() [D:\build\++UE5\Sync\Engine\Source\Runtime\MovieScene\Private\EntitySystem\MovieSceneEntitySystemGraphs.cpp:760]
LogOutputDevice: Error: [Callstack] 0x00007ffbdad88e34 UnrealEditor-MovieScene.dll!FMovieSceneEntitySystemRunner::GameThread_InstantiationPhase() [D:\build\++UE5\Sync\Engine\Source\Runtime\MovieScene\Private\EntitySystem\MovieSceneEntitySystemRunner.cpp:424]
LogOutputDevice: Error: [Callstack] 0x00007ffbdad8b4b7 UnrealEditor-MovieScene.dll!FMovieSceneEntitySystemRunner::GameThread_SpawnPhase() [D:\build\++UE5\Sync\Engine\Source\Runtime\MovieScene\Private\EntitySystem\MovieSceneEntitySystemRunner.cpp:405]
LogOutputDevice: Error: [Callstack] 0x00007ffbdad8acfb UnrealEditor-MovieScene.dll!FMovieSceneEntitySystemRunner::GameThread_ProcessQueue() [D:\build\++UE5\Sync\Engine\Source\Runtime\MovieScene\Private\EntitySystem\MovieSceneEntitySystemRunner.cpp:318]
LogOutputDevice: Error: [Callstack] 0x00007ffbdad7b464 UnrealEditor-MovieScene.dll!FMovieSceneEntitySystemRunner::DoFlushUpdateQueueOnce() [D:\build\++UE5\Sync\Engine\Source\Runtime\MovieScene\Private\EntitySystem\MovieSceneEntitySystemRunner.cpp:210]
LogOutputDevice: Error: [Callstack] 0x00007ffbdad86558 UnrealEditor-MovieScene.dll!FMovieSceneEntitySystemRunner::Flush() [D:\build\++UE5\Sync\Engine\Source\Runtime\MovieScene\Private\EntitySystem\MovieSceneEntitySystemRunner.cpp:177]
LogOutputDevice: Error: [Callstack] 0x00007ffbdae0721c UnrealEditor-MovieScene.dll!FMovieSceneRootEvaluationTemplateInstance::Evaluate() [D:\build\++UE5\Sync\Engine\Source\Runtime\MovieScene\Private\Evaluation\MovieSceneEvaluationTemplateInstance.cpp:147]
LogOutputDevice: Error: [Callstack] 0x00007ffc335f02ee UnrealEditor-Sequencer.dll!FSequencer::EvaluateInternal() [D:\build\++UE5\Sync\Engine\Source\Editor\Sequencer\Private\Sequencer.cpp:3112]
LogOutputDevice: Error: [Callstack] 0x00007ffc33684f79 UnrealEditor-Sequencer.dll!FSequencer::Tick() [D:\build\++UE5\Sync\Engine\Source\Editor\Sequencer\Private\Sequencer.cpp:823]
LogOutputDevice: Error: [Callstack] 0x00007ffbf0099539 UnrealEditor-UnrealEd.dll!FTickableEditorObject::TickObjects() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Public\TickableEditorObject.h:45]
LogOutputDevice: Error: [Callstack] 0x00007ffbf056c074 UnrealEditor-UnrealEd.dll!UEditorEngine::Tick() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\EditorEngine.cpp:1536]
LogOutputDevice: Error: [Callstack] 0x00007ffbf0ef8866 UnrealEditor-UnrealEd.dll!UUnrealEdEngine::Tick() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\UnrealEdEngine.cpp:474]
LogOutputDevice: Error: [Callstack] 0x00007ff6933f82f6 UnrealEditor.exe!FEngineLoop::Tick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5215]
LogOutputDevice: Error: [Callstack] 0x00007ff693410d9c UnrealEditor.exe!GuardedMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:183]
LogOutputDevice: Error: [Callstack] 0x00007ff693410e8a UnrealEditor.exe!GuardedMainWrapper() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:147]
LogOutputDevice: Error: [Callstack] 0x00007ff693413c4d UnrealEditor.exe!LaunchWindowsStartup() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:283]
LogOutputDevice: Error: [Callstack] 0x00007ff693425534 UnrealEditor.exe!WinMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:330]
LogOutputDevice: Error: [Callstack] 0x00007ff6934286d6 UnrealEditor.exe!__scrt_common_main_seh() [d:\a01\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
LogOutputDevice: Error: [Callstack] 0x00007ffcad227bd4 KERNEL32.DLL!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007ffcaf02ced1 ntdll.dll!UnknownFunction []

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Fixed

Component	UE - Anim - Sequencer
Affects Versions	5.0
Target Fix	5.0

Fix Commit	19388821
Main Commit	19402179
Release Commit	19388821

Created	Mar 14, 2022
Resolved	Mar 15, 2022
Updated	Jan 25, 2023

View Jira Issue

UE-145913

Adding a track for LayerData.Offset to UMG Animation throws an Ensure

Adding a track for LayerData.Offset to UMG Animation throws an Ensure

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