Incoming logins seems not to work (Mac OS 12 on M1)

Hi I have recently upgraded to a Mac Mini M1 and I have ported my old OS X install onto this using the Mac OS migration features.

I have trouble to log in via Team Viewer on this M1 machine. I have set it up to be "easy access" from my account, but something impedes the access.

Using "access with confirmation prompt" I get the prompt, but nothing else happens. Using "access with password" the login get stuck. In any case I do not get any prompt for 2FA, which instead works for all other of my machines.

What could be wrong? Is it worth Uninstall and reinstall from scratch? Maybe the fact that this was in a migration from previous OS messes us things?

Thanks for helping