If I go to https://kbin.social/m/blender, I can see a number of posts and a large number of subscribers. When I look at the same (?) community through lemmy.fmhy I get just an empty community (https://lemmy.fmhy.ml/c/blender@kbin.social). Not sure if this is expected or if I’m misunderstanding something about how this whole thing is suppose to work, but it seems wrong 😅
AFAIK Kbin -> Lemmy only synchronizes new content. While they’re both on the fediverse, they don’t have direct support, so it’s a bit finnicky.