Currently searching for existing communities on other instances doesn’t always show results (if no user on your instance has already subscribed).
A workaround I have found is to search for a post from that community, after which you can access the community via the link near the username of the OP.
From there you can subscribe.
How long did you wait for a result? Checking on this method, I can see that initially it shows no results when I did a test search for https://lemmy.ml/c/aboringdystopia, but after several seconds, it appeared on the result page.
Took awhile when searching for [email protected] as well. So, it seems to be happening, just not terribly quickly at the moment.
Impatience then is it? Lol I think you’re right!
Heh, possibly!
I think there’s a bit of clumsiness with it at the moment (it would be great if there was a visual indicator that it was still working on grabbing the details on the backend, or whatever), could be worthwhile checking to see if there’s an issue filed for improving that.