Ambient sounds ok while playing but muted when playing a cinematic with the Sequencer

Hi all! I recently move my project from 4.11 to 4.12. I had a simple Matinee cinematic with a camera move + music + animated character. In the level I have some Ambient Sounds (with a sound cue with loop), no attenuation and AutoActivate flag. When I play, or if I use the previous Matinee system to play the cinematic, everything works as expected. If I use the new Sequencer, the Ambient Sounds are not played. I cannot hear it… I could add the sound to the Sequencer Audio line (when I do, it works) but these sounds should be heard as soon as they are in the level :slight_smile: and it is working with Matinee! Am I missing something?

Thanks for your help!

No answer, no fix on this? Pretty simple to reproduce!