Martok
Well-known member
Well blow me, you learn something new every day! I tested this on my dev site and saw the visual bug but now I've returned over an hour later (without clearing my cache) it's now gone. At least I know for future reference.I had the same problem and clearing my browser's cached fixed it. That's because the overlay is loaded via an HTTP request that's apparently set to be cached (in the browser) for one hour. It's basically just a visual bug that affect a small percentage of the users though. If you didn't use the Media overlay in the hour preceding the change you're not affected.