Since long time ago...
well i have this problem, the same for latest version 18.3.1
i had the same problem with the version of november after the install of windows 1709
but only upto 17.7.1 drivers everything was working correctly
is there a way to solve that blinking?
overwatch isn't the only game showing that blink, it happens in almost every one when they are in full screen
i have a r9 270x
fresh install of windows shows the same issue after installing last version of drivers, it's only a driver problem.