Snoopy: When I go to another fellowship and see a team I already belong to another fellowship, it says I can't join.

Then right under the team, it tells me why - and that I'm still a member of another fellowship's team.

My only guess is that maybe you were part of a team of a fellowship which got deleted, and even though it no longer shows you part of a team, somewhere in the background it still has you attacked to the deleted fellowships team.

Hopefully Fencer will be able to help.