Ubuntu 18.04 oem install oem setup change language xdg-user-dirs-update not running

[ubuntushop]

ubuntu 18.04 oem install with preseed.
If click on oem-setup-prepare shortcut and after reboot, than oem setup will ask for username etc.;
But when choosing another language than the oem installed system (for example ubuntu oem installed in dutch, and than changing the language to english in oem setup first run) and after logout login and/or reboot the user's dirs are not updated in their chosen language. There is also not xdg-user-dir-update popup asking to change the dir's languages.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1821048/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[ubuntushop (g-info-l)]

seems for french language it is working ok. But if changed to english language de home dir's are not translated

[ubuntushop (g-info-l)]

i have tracked the error to gdm,
Gdm does not change the language after user setup with other language (and login with password selected).
If I reboot before the user logs in for the first time, all is ok.

[ubuntushop (g-info-l)]

I tried to add this preseed value, but seems not working:
d-i oem-config/reboot boolean true