Lemmy.ml has now blocked Threads.net
I think I saw someone else mentioned that bug as well. I think your subscription list in the main menu doesn’t automatically refresh after you subscribe to a new community so currently you would have to close and reopen the app. Updates and bug fixes have been daily lately so hopefully that gets fixed soon.
Unfortunately I haven’t found a way to get newly subscribed communities to show up. Closing and reopening the app as you said doesn’t seem to work for me. I have tried that and deleting and re-adding my account, but it doesn’t seem to work. Once that is ironed out, it might be a nice switch. But it’s a pretty big bug.