The lemmy.world bubble is back - eviltoast

For the past days I’ve noticed that posts/comments I make on my lemmy.world account are not (or rather very slowly, if ever) federated to the source instance of the community and post/comments that are on the source are not (or rather very slowly, if ever) federated to the local copy on lemmy.world.

The result is again (as it was before 0.18.1) that lemmy.world users are living in a bubble in which they see each othery posts/comments but nobody else does.

Is this a known issues and is this going to be addressed?