It is fixed, for now I've just tried this morning, and have noticed it works. Workaround, in case it happens again This has happened at least twice now, once in 2021, and now again in 2022. I'll put a link to my stack overflow question and answer about this in case it happens again in the future: Can't login to Apple ID on Xcode, Unexpected nil property at path: 'Provider/attributes/developerTeamId' The workaround I found was to use an Apple ID with only one developer team.