Had the same Firestudio Project for 6 years and it’s never let me down until this week, right in the middle of recording an album! Out of nowhere the sync light keeps flashing and will occasionally turn blue for a few minutes before making popping noises and losing sync again to where it flashes. PLEASE HELP! I don’t want to have to upgrade to a Focusrite or something. I loved this interface so much! I’ve tried uninstalling and reinstalling the latest driver, using the other FireWire port, and still can’t figure this out. Just last week it was working fine. Using an iMac with OS 10.13.5 (Also, I saw some talking about an extension issue? My computer never brought up any problems when installing the latest driver.)