probably not supporting the new api changes, the comments are visible in other clients/the web.

I've switched clients untill there is a new release which fixes this and more issues.

(edit: Lemmy.world was updated yesterday which strengthens my theory of it not being supported anymore)

Are you browsing /local?

Same issue on Sync here and the app dev is MIA. Using Voyager now.

Lemmy.world was up and down earlier, it wasn't just Sync for me. Ran into the same thing, other instances worked fine in Sync and Lemmy.world was slow to load/unresponsive in the standard site and the Alexandrite version.