Winking black screen in full screen

I was using 17.7.0 version of mpc everything was ok until I installed Magix Vegas Pro after that I tried to watch a movie with mpc in full screen and it started to Wink black screen... I installed the latest version of MPC and it still occurs... it only happens with MadVR+Full screen( I use MadVR default settings... my PC is connected to my 4k HDR tv using HDMI )
Pls help me it's really annoying

I found a solution ... I turned off nvidia's overlay and it got fixed! but it was ok before with nvidia's overlay!!!!
https://i.postimg.cc/TPR6j6NK/image.png

You need to report NVIDIA driver bugs to NVIDIA.

I can not help you.

Admin wrote:You need to report NVIDIA driver bugs to NVIDIA.

I can not help you.

Ok Ty
One question
https://ibb.co/0GZ9P94
Should I change it? it was dx11 before it changed it itself?

and I really don't know how to find the best madvr settings for my case even after researching

I use this player for 1080p hevc 10bit anime on 4k hdr 120hz tv ... my GPU is 1080ti and they connected together using HDMI ... can you pls tell me the best madvr settings (or other settings ) I can have for my case?

In nvidia driver I use this setting, 444 is the best one for my case?
https://ibb.co/bK2Dc6w

DXVA2 Copyback is best choice when using MadVR.

Dynamic range should preferably be set to full range. In NVIDIA settings, in MadVR, and in TV.

Admin wrote:DXVA2 Copyback is best choice when using MadVR.

Dynamic range should preferably be set to full range. In NVIDIA settings, in MadVR, and in TV.

I only have limited option in nvidia control panel why? and color format should be 444?

and I can't find "full range" in Madvr settings pls help

and for TV option (x90K tv) I found hdmi range it's set to auto when I set it full I think it becames less vivid

color format should be either RGB or 444

madvr > devices > properties

if it becomes less vivid it is because you didn't change it in all three places