Glitch / Bug
When posting to one of my groups, posting a near max limit post with 6 photos, I got a pop-up message saying my post can't be posted empty and then when trying to leave the page, I was asked if I was sure I wanted to leave my current post, which on my screen showed nothing. (Not even the post I was working on) & when I canclled it and opened up the thread to maybe check, everything I posted popped up again. I thought maybe it was the photos that broke it, so I removed the photos, went to share it again, and it shared. But the photos I deleted from the post, posted anyway, even after being removed.
https://gyazo.com/7c39703f3b5946a624bc51944a9005fe
Screenshot shows the message I got.