Federation issues with Lemmy world?

There seems to be federation issues with Lemmy.world.

Example 1:

• From Reddthat: https://reddthat.com/post/14960219?scrollToComments=true - 1 upvote, 0 comments
• From LW: https://lemmy.world/post/12730673 - 6 upvotes, 1 comment
• https://lemm.ee/c/avatar@lemmy.world - 6 upvotes, 1 comment
• https://discuss.tchncs.de/post/12012824?scrollToComments=true - 6 upvotes, 1 comment

Example 1:

• https://reddthat.com/post/14956435 - 19 comments
• https://lemmy.world/post/12726242 - 32 comments
• https://lemm.ee/post/25750393 - 32 comments