My account is German, I am in Germany or France, they are both using the same account, running curl ipinfo.io returns ... "country": "FR", .... Both countries are supported. I have re-installed AS (currently on Meerkat, latest stable), I have enabled, re-enabled, removed and re-authorized my account.

I have also not found any resources describing this issue and none that explain troubleshooting. What region does it think I am in? Is something else going wrong but catching the wrong error?

I found this question - which has no answers (other than a false claim, that OPs country is not supported.)