dktadc Fixed, should be working now.
arteteco This is likely a bug in Masquerade, however I am unable to reproduce it. Might be an incompatibility between some other extension. I do not see anything in the Flarum logs btw, but feel free to play with extensions and watch Console for errors.
Gommzy1 I do not see any Flarum logs for your forum either. I have enabled the German language pack for you, that fixed it now.
FYI everyone use only extensions that you indeed need. If there are many extensions enabled, things are more likely to break (even loading/enabling order matters in some cases).
I've tried my best to debug everything, but it is difficult to test every unique setup a forum can have, so I apologize for that. I will try to fix things before they break.
I am going to sync & migrate all forums one more time just in case, because some of them weren't (likely including yours). It shouldn't cause too much noise and it'll run quietly in the background, there shouldn't be a downtime. Note that if you use your forum the moment it is syncing & migrating, you have the ability to break your forum. This is, however, very rare. It should be done in those 6 hours for every forum. Thank you everyone for reporting the issues 🙂 and sorry one more time.
FYI reCaptcha extension is still incompatible and will be removed until it updates.
Edit: Sync done.