Make sure your Windows 10 and graphic card drivers are fully updated and it will stop.
I've just updated my grahpic card driver to the latest version, released 8th of this month, and my windows 10 is Home, can't find any other info about what version it is, but it still keeps flashing in fullscreen. Anyway to stop this?
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open folder of game go to element/user data then open folder called "systemsettings"edit those 2 with resolution of you want or if you want full screen with your monitor resolution mine in this case is 1920x1080 make sure this is on 0. And save itAfter that open your taskbar properties and check that auto-hide box.Click "ok" and run game should work fine(atleast it did for me)