Unreal Engine Issues

InitializeAnimScriptInstance may only need to be called if the mesh actually changes when restoring state in Sequencer

The fix for [Link Removed] reinitializes the anim bp whenever the animation section restores state, it may only be necessary to reinitialize it if the skeletal mesh changes. ...

[CrashReport] UE4Editor-MovieSceneTracks!UMovieSceneComponentMobilitySystem::RestorePreAnimatedState

[CrashReport] UE4Editor-MovieSceneTracks!UMovieSceneComponentMobilitySystem::RestorePreAnimatedState(IMovieScenePreAnimatedStateSystemInterface::FPreAnimationParameters const &) [MovieSceneComponent ...

Editor Crashes when adding the Start Matinee Camera Shake node to a Blueprint and playing in editor

When adding the Start Matinee Camera Shake node to a blueprint and then playing the project, the editor crashes. When regression testing in 4.26 however, I noticed that compiling the Third Person Ch ...

Editor crash when disabling looping in a nested subscene

Disabling looping in a nested subsequence seems to crash the editor upd. Regression was checked on //UE4/Release-4.26 CL 15973114, the issue wasn't reproduced. Regression - Yes ...

Ensure in MovieScenePropertyTrack when packaging

Sometimes when Sequencer window refreshes the mute property on tracks are toggled

Issue was noticed by Grayson in For.tnite/Main. Regression: No this occurred similarly in 4.27 still not 100% repro but some modification in sequence triggered toggling the mute track ...

Curve interpolation settings are forced to change from User to Break when importing animation from FBX in Sequencer

Due to the following code in [Link Removed] (CL-11585172), it is always set to Break even if the Tangent value is continuous. ArriveTangent = LeftTangent * (ArriveTimeDiff); ... LeaveTangent = Ri ...

Tangent is divided twice by Decimal Rate when importing animation from FBX in Sequencer

The cause is that the ImportFBXProperty in MovieSceneToolHelpers.cpp is divided by DecimalRate. ArriveTangent = ArriveTangent / ((Key.Time - PrevKey.Time) * DecimalRate); LeaveTangent = LeaveTange ...

Copying and pasting event tracks will break endpoint bindings

See linked UDN for more info. There appears to be an issue with mismatching parents when copying causing this to fail. ...

Pasting a component binding onto a Spawnable will not set up parenting correctly

It appears that for spawnable bindings, when adding a child binding through a copy/paste it is not added to the child bindings array on the spawnable, so when GetChildPossessables is called, there a ...