What is this graphic glitch?

I have a strange graphic glitch which suddenly pops out of nowhere and does not go away from there on. It always happens at the top part of the screen and it looks like it has something to do with Vsync. However, disabling/enabling Vsync doesn’t help once the bug has appeared.

The glitch introduces quite noticeable studders when panning the view. But in every other situation, the fps is pretty stable.

The bug happens totally at random. Sometimes I can fly for 2h without any problem, in other flights it pop up after a few minutes.

Does anyone know what might cause this? It only happened after SU7.

This is a known issue, you may be interested in this thread.

Hi @GigantPetz,
There have been some reported issues on this. Please contribute to the topic @TheSevenflyer linked above. Thank you!