Hi Andrew,
Thank you for reaching out on the forum.
Looking at your issue, I would suspect that perhaps your permissions in MacOS may be causing you trouble, so the first thought would be to check that nothing is awaiting your approval in the Privacy settings on your Mac.
For any further help I want to direct you to Avid Support as these fine products are part of the Avid Product range and can be expertly handled by their excellent support team.
Best Wishes,
Jon
NTP/DAD Evangelist and Santa’s Helper