The problem is somehow triggerd by the installed languages. I had English, German, French, Italian, Portuguise and Esperanto installed on the machine that was affected by the bug.
Now I just removed all languages but English and German, and now the user-accounts starts up as it should. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/854802 Title: User account manager does not start (closes immediately) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/854802/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs