Gijs could give us some comments, but for some reason he has not reacted.
Gijs is not an OpenRadar developer nor is he obligated to give you an answer.
besides KFSO blank picture I have experienced flickering partial picture shutdowns in other airports after having been connected for a few minutes.
That sounds like a graphics card problem to me.
But before we make any assumptions, we need more information from both of you. Like what OS and what graphics card are you using? Post screenshots if you can.
The more information you can give about your setup, the easier it will be for us to find a solution.