I have Radeon Software version 20.4.1. I use a Samsung Q70r 55" as monitor, with hdmi (cable that works with 4k 60Hz). Previously, I had changed the pixel format to full RGB in order to get rid of that "grey/blue dimness" that was present. But when I played a game I thought the colours looked too extreme so I changed back to YCbCr. After having played I now wanted to change back to full RGB, but suddenly there are many options missing from Pixel Format. The only ones I can choose between are YCbCr 4:2:2 and 4:2:0. How can I get the other options back?