Swede001 I feel your pain! I have exact same issue but might have picked it up after SU11 update. I too have tried everything including a reinstall of MSFS 2020. In addition, I also screened the system 32 files for errors, reinstalled DirectX, visual C++, the XBOX app and a few other things I can’t remember. Got my hopes up when I first read your thread cause it seems a lot of folks have similar but not exactly the same issue. Anyway, hope we both find a solution soon.
Rickatsea