Subscribing to a community stuck on "Subscribe Pending"?

I was trying to subscribe to the !reddit@lemmy.ml community so it can appear on my feed at Lemmy.one. But it's been stuck at "Subscribe Pending" for about 6 hours now. Is lemmy.ml just still having performance issues or is this a bug? I've subscribed to other lemmy.ml commuities from lemmy.one with no issue before.