Project Default: Completion Mode

By default, the Completion Mode, aka “When Finished” variable for a UMovieSceneSkeletalAnimationSection is Restore State. To change it to Keep State for the whole project, add the following line to DefaultEngine.ini:

[/Script/LevelSequence.LevelSequence]
DefaultCompletionMode=KeepState

There is no setting in either Project Settings or Editor Preferences for this - it’s a variable (UMovieSceneSequence->DefaultCompletionMode) that gets saved/loaded to/from the config on editor startup. If it’s changed, restart the editor for it to take effect.