Stuck in edit mode

So I haven’t played WoW in a long while, I have 8 toons and I’m leveling them up and adjusting the UI. What happens in all of them is that while I am in edit mode and moving various elements around (it can be a window or even a mini-map button) that element will get stuck to my mouse cursor. At that point I can not click on anything and I’m stuck in edit mode. Now once or twice I was able to escape out (I have tried clicking every key and combo) but 99.9% of the time I have to task manager close the game.

I have disabled all addons, deleted the cache folder, scan & repair, and this still happens every time I play.