I have the Sapphire rx-570 4gb and i can use YCbCr on some resolutions and refresh rates only. For example i can't on 1080p 60hz but i can on all others hz 59-50-24-23.
Some times i can't select 24hz. The screen turns black.
And for the first time ever with 19.7.5 driver, all of a sudden after a game, the black level stuck in something between limited and full range and i can't fix it without uninstall the driver.
Windows version 1903.
System: Gigabyte B360M DS3H, I3-8100, 16GB RAM DDR4 PATRIOT