Not all comments show up when browsing a lemmy.ml community from my beehaw account

Subs on Lemmy.ml don’t show the same comments when I’m browsing it through my Beehaw account. Most posts have no comments at all (and 0 upvotes too), but I can go straight to lemmy.ml in another tab and see that there are in fact discussions going on in the comments. This problem doesn’t affect all of the posts. Some are normally populated.

Also I checked that it has nothing to do with lemmygrad being defederated or blocked from Beehaw, the comments which are not showing can be from various instances.

Edit : Also it happens in subs I have subscribed to.

How can I troubleshoot that ?