Ah, sorry Armin. I caught a case of ‘unfinished draft’.
I believe the badge titles are designed to be translated (where a translation exists), so they would seem to be working as expected. I suppose you could argue that they should be re-translated based on who’s viewing it, but I think that would be a change rather than a fix.
Though the ones you set as Default Group Titles shouldn’t be translated, and should remain as you’ve set them. Would using that feature be more suitable for your use case?