@mirjam_465,
Looks like the videos are all still there, they just got folded under. 
I discovered this when I deleted a videoless post, referring to a video. Then, a bit later, I decided to undelete the post.
Imagine my surprise when the actual video popped up! 
So, I went on a test of other posts. I’d delete the post that should have a video, then refresh the page, and undelete it, and it happened again! The hidden videos just kept popping right up!
I think I woke up the bot though, not long after I kept getting popups saying 429, and wait 3 seconds, wait 10 seconds, you’ve performed that action too many times. I got one that said wait 23hours!!! Now I’m stuck.
