Can't find Kbin community?

Not entirely sure yet how Lemmy works, but I can't find functionalprint in Kbin through Sopuli. Like this works fine: https://sopuli.xyz/c/RedditMigration@kbin.social but this: https://sopuli.xyz/c/functionalprint@kbin.social does not, even though https://kbin.social/m/functionalprint exists. Anyone know why this is?