I’m trying to subscribe from lemmygrad, but it’s stuck in “Subscribe Pending”, which usually means there was some error. It doesn’t look like either instance is blocking, and the initial posts from visiting the comm did sync. Is there an error in your logs?
Check your subscribed list, they should still be there.
Yes, that is always true when things are stuck in subscribe pending, but since there are zero local subscribers, new activity isn’t federating.