Issue Rhino Window flashing black after command


i recently got a Macbook pro 2014 15" with the iris graphics.
Today the Rhino Window suddenly started to flash black after performing a command (It flashes black for less than a second, like a graphical distortion or something).
This happens not after every Command I do, sometimes it does, sometimes it doesn’t. I can’t reproduce it but It happens and annoys me. I tried to reinstall rhino with no success.

If I Plug in an external monitor the black flashing window is not happening.
Neither with the internal nor with the external monitor.
The weird thing is the error didn’t happen until now.

I couldn’t find anyone else with the same problem.