Federation problems between scribe.disroot.org and fe.disroot.org

In recent days I have noticed that there seem to be federation problems between akkoma and lemmy instances of disroot.

When I try to search for a lemmy post (e.g. https://scribe.disroot.org/post/3463101) on akkoma, it doesn't find it. Also, when I try to follow a lemmy user, it remains as pending approval.