A bit of a strange one this. I have been doing some video work and switched my Eizo ColorEdge CG279X into the Rec 2020 color space and found that when I launched a Google Chrome web browser that the window displayed without its contents with just a transparent frame around where the Chrome window should be. When I chose a different colour space (Rec 709, Adobe 1998 etc.) Chrome displayed properly.
I had tried everything before this (uninstalling the program etc.) but it was only when I changed the colour space that things fixed themselves.