I thought it was just me. It was driving crazy this weekend. I'll shut down chrome restart, and after awhile it would happen again. I even uninstalled chrome because I thought it was a bug. I downloaded brave and thought I was out of the woods until a few minutes ago. WTF! Like someone else here mentioned, if I take it out of full screen it works, even if I stretch the browser window to cover the screen. Yeah, this suuuper frustating. Has anyone gotten a response from apple? It's got to be happening everywhere. The funny thing is, I read somewhere that the update a little glitchy, but I figured hey, its apple they'll get it right before they release it. Boy, was I wrong!