All facebook post started failing to post from scheduler yesterday and I can't resolve the issue.

I post 3-5 videos a day through the scheduler, and usually it's semi-reliable. Yesterday, it posted my first post to all platforms, but my second, third, and fourth posts were posted to everything but Facebook, which keeps giving me the "failed" error. 

I tried to repost, I made a new post, I reconnected the account, I disconnected it entirely and reconnected it, I cleared my cache. Nothing works. 

Has anyone run into this issue? If I have to post to Facebook separately, it's not even worth using the scheduler. I'll have to manually post to the Facebook/Instagram scheduler anyway, and I'm back to individually posting all the content.