sh.itjust.works Main Community

I have created a community, and made several posts. On one post, I see a comment, and have replied to it. That's the only comment I can see. However, now a friend of mine has joined my community and he can see lots of comments on many posts (he's sent me screenshots to prove it). I can't see any of the comments he can see.

He is on a different instance, (lemmy.world) but that doesn't seem to be the issue, because the one comment I can see is also from a user on lemmy.world, and the comments my friend can see are from both instances. There are even comments from users on sh.itjust.works that I can't see either.

What's going on? Why can't I see comments on my own community and how do I fix it?

If I can't resolve it, I will just have to close the community because it's pointless if I can't see or respond to anything that anyone else says.

And it's just occurred to me that I may not even see replies to this, if there are any. .. so I may never know the answer...