Unfortunately I can't make sense of the information you have provided so far. The locale configuration is screwed up somehow, but none of the two files where such configuration is normally saved seems to be involved. You reported that "Apply System-Wide" makes a difference, and that precludes quite a few candidate files.
I don't know how to reproduce the behavior you describe, and so far I see no confirmed bug in any of the packages which are involved in language/locale settings. Can you add anything else to shed some light on it? Possibly you simply need help with cleaning up the configuration of your system, and then some support forum such as <https://askubuntu.com> is the place to go. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1778225 Title: Can't switch UI language for single users, only system-wide Status in gnome-control-center package in Ubuntu: Incomplete Bug description: The title says it all ... I tried to switch the language of the user interface to English instead of German for a single user, which did not work. Applying the new language system-wide did the job, but forced all other users on that pc to have their graphical sessions in the new language too. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-control-center 1:3.28.1-0ubuntu1.18.04.1 ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 Uname: Linux 4.15.0-23-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Fri Jun 22 14:56:26 2018 SourcePackage: gnome-control-center UpgradeStatus: Upgraded to bionic on 2018-05-29 (23 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1778225/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
