My HDR works fine over HDMI 2.0 with a PS4 Pro. It used to work fine with my Desktop PC over HDMI 2.0 as well until windows forced an update on me and now the colors are all shades of green and pink. Interestingly when I connect the computer to an LG OLED E6 TV, HDR on windows works again, albeit the blacks have some white pixel flickering, but the color issue does not show. PC is a Windows 10 Pro, Build# 10.0.17134, Video card is GTX1080. I don't remember the Windows version that it used to work at but at some point I managed to revert back to it and it worked, I now don't have that option anymore. How the screen looks like when HDR is enabled is attached. Ps: I tried display port and the result is the same.