When you're working on a campaign and are choosing elements in the left sidebar, there are two back arrows stacked on each other. The upper one takes you out of the builder and the lower one takes you to the previous menu.  My logical brain knows this because I build Campaigns all the time. But, because the upper arrow is bigger and bolder, I click on it by accident repeatedly while I'm designing.

Then, the only options are to exit without saving or to save and exit... meaning I get kicked out of the builder repeatedly and have to go back in. Granted, it only takes a few seconds each time, but it's really freaking annoying. I can't be the only one who does this. 

No major overhaul is needed, but if you could at least add a cancel option for those accidental clicks, it would make it so much more user-friendly. Please and thank you. :)