Ironically enough I had just added several communities from lemmy.world and sh.itjust.works to my feed on Beehaw. Luckily I can still see them on my "Subscribed" list - not the content, the community names - so I'm adding them to my kbin subscriptions instead.
I'm glad to see that kbin has gotten stable. I'd been trying to use it for days, but it kept freezing and crashing!