Heat Map not working

[PawsonPaws]

Hey i cant get the heat map to fill my screen, every time i pull it up its like a PiP on the top left how do i fix this. Ignore the blown out white its on a HDR screen so it looks weird in paint.

 

[Popoblanko]

I remember having that exact same issue when I first booted up the game.
For me it went away after playing around with the DLSS (FSR if you have AMD) Graphics-Settings.
I still have it activated, but the "default" settings were broken on launch and caused this issue for some reason.