update-manager does not touch the user premissions, please attach the upgrade log in /var/log/dist-upgrade so that we can check if anything else look odd. Please also check in /var/backups/group.bak if its from before the upgrade.
update-manager does not touch the user premissions, please attach the upgrade log in /var/log/ dist-upgrade so that we can check if anything else look odd. Please also check in /var/backups/ group.bak if its from before the upgrade.