I experienced this 10. april and made a bugreport about login, #1872104. I lost my adm privileges and "was put" to a custom group, att screenshot
** Attachment added: "custom group" https://bugs.launchpad.net/ubuntu/+source/policykit-desktop-privileges/+bug/1240336/+attachment/5351888/+files/Screenshot%20from%202020-04-11%2014-53-05.png -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/1240336 Title: After release upgrade, the user loses permissions for several basic actions in the system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/1240336/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs