Thanks Mark.
Been fine the last week until yesterday, when I put a track in Polyphonic mode and slowed down the tempo of the session.
Immediately got this error:
https://www.dropbox.com/s/9ehkn0t0mz...%20PM.png?dl=0
I do this a lot, and after re plugging in the unit and re launching PT I continued using EA with no problem.
Wondering if upgrading to Big Sur would solve some of these odd issues...