I originally signed up to mastodonapp.uk. Now that I’m attempting to get m.dollha.us running, I’m looking to pull my account from the former and move it to the latter. Easier said than done, though, because I cannot, for the life of me, seem to get my instance to federate with that instance. I have tried leaving it for a week or three, I have tried starting it in limited federation mode and whitelisting the instance in question, and I have tried a dedicated relay provided by fedi.buzz.

Today I noticed something interesting in my sidekiq logs: My instance is actively rejecting mastodonapp.uk - despite it not being in any blocklists. This is, of course, via the dedicated relay, so it could be a relay issue, but I can see no obvious reason why that would occur.

What could be the problem here?