"I was experiencing this too when trying to replace existing videos with new videos. 1 out of 10 videos allowed for the "Compression - Non..."

"Hi Alyssa, thanks for the reply! Glad to know it's on the radar."

"Any updates on a more robust "undo" feature?"

"Are there any plans on making the "undo" button after deleting a block linger for longer than a few seconds? "

"Hello Katie,  Thanks! Just seeing it in Storyline 360 so far, haven't checked elsewhere. "

"Hello Crystal, I'm experiencing the same behavior - commenting here so I can receive notification updates too."