Hi Steve/all,
We have fixed an issue that we believe is likely causing this intermittent sign out issue. It is in our current Beta, and will also be released with 21.2.0 which will be out soon.
Please test the Beta out if you can, and update to the latest Field Maps once it has been released. If you can report back to this thread if you continue to see the issue after update (and even better - report back if to confirm it resolves it!)
We understand that this is a frustrating issue - and we hope this resolves these issues.
Thanks,
Heather