Same here, exactly like salfuman described, but using iPhone.
It doesn’t have anything related to a specific wifi. I tried 2 different wifi networks (airport extreme and creating a network through macbook) and got exactly the same issue.
If you play in the project view, switch to command window, execute any command and go back to project view, screen starts to flash/blink. If you pinch the screen to resize, it comes back to normal operation.
Cubase 8.0.10, Macbook Pro OSX 10.9.5, iOS 8.1.2