There is some desync issue with lemmy.world and feddit.de

In the last day or two, I noticed that comments don't appear to be syncing very nicely in these two instances. There's a similar post about it here, on lemmy.world

Example, same post under different instances:

• https://feddit.de/post/953659 - 6 comments

• https://lemmy.world/post/333334 - 8 comments

Other example:

• https://feddit.de/post/978928 - 3 comments

• https://lemmy.world/post/377126 - 8 comments

Thanks for the help