I just had this same problem and found your thread while looking for solutions. Don’t know if you’ve solved it yet, but I finally figured out what was causing this behavior for me. If you right-click on a sequence and go to sequence settings, the first entry there is “Editing mode”. go to playback settings / “Audio Output” tab and check “Use system sound card”. restart Premiere… and should work.. :),
razvan
THX,
Razvan