The outbound federation to lemmy.world has been resolved at this point (thanks hitagi!), but the inbound federation from lemmy.world continues to be an issue. I don't really have any insight into solutions for that as it seems it might be due to physical constraints similar to what has been plaguing the AU/NZ servers.
Just a heads up to moderators of ani.social communities though. Because the world version of any community here is going to be a couple hours delayed (currently ~8 hours), it might make sense to have an account on world that you appoint as a mod to your community. This lets you take moderator actions on things that are in the world version of your community even before it federates over instead of having to wait hours for the spam/whatever to federate over before you can remove it.
Tagging @[email protected] to let you know since you probably have some of the more active communities on the instance.