Seems to happen more often after a restart, after the first 404s it will eventually start pulling posts properly then at some point the connection will go stale and it'll 404 again. It's pretty consistent for me. About to try it out on the latest pull. Nothing in the logs/dev mode. Just 404s in the console.
Disbaled Categories showing on Unread page
in Unread page, Disabled categories still show up under 'Mark as Read' might want to check 'All Categories' as well
maybe this was left that way... ?