I understand that it may not be an issue for users who record audio simultaneously while doing ML 2D recording. My use case is frequently different. Very often I record the audio (e.g. character's speech or singing) separately in an audio recording software, where I do some audio processing, which I then export as an audio file and add as a voice track to the actor for lip-syncing. Then I go to ML2D and record facial movements. I discovered however that during ML2D recording, all sound is shut off for some reason - whether it's background music or the actor's voice track, which makes it challenging to record the movements when you can't hear the underlying soundtrack.

I would like an option to keep playback on while recording facial movements using ML2D.