Unlocking GNOME screen in Ubuntu 20.04 fails with 'Authentication error'
If Ubuntu 20.04 GNOME screen is locked and the user tries to unlock it, it fails with 'Authetication error'. This error is issued before typing in the password prompt: the locked screen appears to not accepting keyboard inputs at all. Such issue occurs in NoMachine virtual desktop sessions.
The problem has been reproduced in VMs installed on Google Cloud Platform and VirtualBox.
SOLVED, Released in version 7.0.208
