i have a 13" MBP early 2015, and i'm on macOS Sierra (10.12.5 Beta) recently i've been noticing a weird blink/flash of distorted colors while watching any video it's very quick and unexpected! i changed my browser (i was using safari) and started using chrome and the problem doesn't seem to be solved! i hope it's not a hardware problem, because i don't have apple store in my country !! tell me if anyone needs a further information !!