I just noticed I have the same issue with the Lounge category.
I think the group_names=(names) method of the Category model should find the correct name of the group? Or change the fixtures?
Oh dear, I didn’t realize we were using the string names rather than the numeric codes. I wonder why we haven’t seen more complaints about this for Discourse instances in other languages?
I’ve seen the same (or similar?) bug running Discourse in Czech and thought it was a random glitch related just to a single user. It went away after I temporarily turned the moderator into an admin and back IIRC, so I did not bother reporting it.
I have a Norwegian install - and when I’m logged into my admin account, I can’t access the staff category. I see it in “All categories”, but when I click it it just keeps loading.
I made a test user and made it moderator - then that user got access.