Yes, it's 5.2.4
I go checking ..
And ...
On the Admin account, stteings page, defaut language ... french.
If I open options, english language is selected and as soon as I select it, all is french.
As soon as I delog/Log in ... back to english in options language and french in settings ... all in english.
Trouble is if I personally don't care, my users do not use english ... and so I need french as first language after logging.
And selecting or not "restore last user selections" changes nothing to that.
I'll try and look for the config file to check if anything can be moved ...
Edit :
I went in the database, checking users.
Language set as english for admin ... changed to francais.
Lauching calendar, loging ... french ..
Try and change language in the calendar, no change in the base neither via options or settings.
Well, the issue is solved for me but ... there's a malfunction somewhere to store this particular change.