500-Fehler bei Rate Limit bei Verwendung der Admin-API über Schlüssel

OK this is fixed per:

But it will take a bit for it to land cause I need to clean plugin tests.

The particular reason you are getting rate limited is:

if you are self hosting you can raise DISCOURSE_MAX_ADMIN_API_REQS_PER_KEY_PER_MINUTE to a higher number. We introduced this limit to protect from unintentional API abuse.