I first noticed this problem when it seemed like items in a slide other than the one(s) I was working on seemed to be moving. to prevent this, I locked all items other than the one I wanted to work on. And - when I unlocked the one, it wouldn't allow me to move it! Only when I unlocked ALL (opening me up to others moving in a way I didn't want) was I able to move the ONE I wanted to unlock. I have attached a video taken with Replay with this email.