I also saw this. The unfollow/follow trick worked for me.
Posts from yesterday and today show up normally in my latest posts feed. However, the most recent post I have in my latest posts feed from before then is from mid-November. The missing posts (from mid-Nov to early Jan) are still on people's pages, just not showing up on the latest posts feed.
Latch
After opening the website, the newest posts shown to me were at least a month old. Tried clearing cache, cookies, etc. and didn't help. Posted something myself and it showed up at the top of the timeline. Unfollowing and refollowing the accounts I follow seemed to fix the issue, and return things to normal.
2 people have this problem