FMovieSceneTrackCompilerArgs :: DefaultCompletionMode Becomes Undefined Value Using Add New Camera and CameraCut Button of Sequencer

FMovieSceneTrackCompilerArgs::DefaultCompletionMode is undefined value in UMovieSceneTrack::Compile if using add new camera and cameracut button of sequencer.

When creating another track, processing runs in the following order.

1. FMovieSceneEvaluationTemplateGenerator::ProcessTrack
2. UMovieSceneTrack::GenerateTemplate
3. UMovieSceneTrack::Compile

FMovieSceneTrackCompilerArgs::DefaultCompletionMode is not undefined value.

But  when creating camera and cameracut track using the button,  processing runs in the following order..

1. UMovieSceneCameraCutSection::GenerateTemplate
2. UMovieSceneTrack::GenerateTrackTemplate
3. UMovieSceneTrack::Compile

So, FMovieSceneTrackCompilerArgs::DefaultCompletionMode is undefined value.

1. Make Level Sequence
2. Click add new camera and cameracut button of sequencer
3. FMovieSceneTrackCompilerArgs::DefaultCompletionMode is undefined value in UMovieSceneTrack::Compile