The problem is most likely that those communities aren't connected to Kbin yet. Content doesn't get federated automatically, a community only starts sending updates to your instance after the first person from your instance subscribes to that community. What is most likely the case is that nobody from Kbin has subscribed to those communities yet.

This is not to say this is the only issue, we've certainly seen some federation issues the past month, but they do seem to have gotten markedly better after the last round of backend updates.

[–] blazera@kbin.social 1 points 1 year ago (1 children)

why do you think I know their posts aren't showing up on kbin? I've been subscribed, several people have, that's not what I am talking about

[–] Coelacanth@feddit.nu 1 points 1 year ago

That's fair, it wasn't clear to me that you meant communities you were already subscribed to, as opposed to them appearing empty when you first search them up on Kbin.

[–] Kaldo@kbin.social 1 points 1 year ago* (last edited 1 year ago)

Nah, the servers are just failing sometimes. I've made comparisons between same threads on both kbin and lemmy instances and almost every time they'd miss some comment (chains) completely and it had nothing to do with defederation or blocking. Syncs just fail or are incomplete, missing up to 40% of comments in some threads. Maybe it's improved now if the traffic stabilized but it seems to me like the foundation is still very unreliable and prone to failures, and the devs didn't implement any backup plans for it (like later reattempts at resyncing or sth).