I have the problem that video and audio is out of sync in FCPX when I use headphones connected via bluetooth to my Mac. When I connect the headphones via cable to my Mac video and audio is synchron.
With apple earphones connected via bluetooth I have the same problem - video and audio is out of sync.
When I use another tool to watch my videos, f.e. QuickTime, with headphones connected via bluetooth video and audio is in sync.
So it looks like FCPX has a sync problem when using bluetooth.
Any suggestions what I can do to resolve this problem?