When I try to drag & drop a photo or build element, the main body of my email campaign scrolls uncontrollable - usually all the way to the bottom then back to the top. It's very frustrating. I have to drop it back in the Build area or it'll drop somewhere crazy and I have to delete it. I've tried having the section I want to drop the element in or near selected, but that doesn't help. I'm on mac os using Chrome.