The All feed on both Hot and Active modes is exactly the same as it was most of a day ago, all the same posts in the same order, except they're all 12h+ old now. At first I thought federation might not be working due to overload, but on New posts are coming in all the time, both local and remote.
Are you looking at subscribed, local, or all?
all... Subscribed and local seem to be working correctly, some of the posts on them are new