Jamkazam can't "hear" input

[Brad Muirhead]

I was using JamKazam successfully this past spring with no problems. Then one time, for no reason that was apparent to me, it stopped detecting my audio input. I am on Catalina and using a MOTU 4Pre interface. The audio signal is reaching the 4Pre, I can hear it in my phones, I can record to Logic no problem. When in a JamKazam session I can hear everything (other players, play-along track) except myself, and no-one else can hear me. I have added new, reconfigured and tested my audio gear many times. I tried to register a new account with a different name but my email is already in use so not allowed. I can not find info on how to delete an account to start over from scratch.

anyone got any suggestions?

>>>
Deleting an account is not going to solve anything.
If you wish, you can reset all saved audio settings via the 'Manage > Audio Settings' menu items, and start over.

didn't work - signal still not getting through to JK