LG 43UJ6200 TV
Power Colour RX480 8GB
Radeon Software Version: 19.4.1
CPU: Xeon X5675 O.C to 4.2 Ghz
HDMI 2.0 Cable 6ft (no adapters)
Microsoft Windows 10 Professional (x64) Build 17763.437 (1809/RS5)
Disabling HDMI Link assurance seems to get rid of the video distortion i was seeing with HDR enabled & a pixel rate above 4:2:0 & Color Depth above 8bpc. I still can't get 60Hz though, it always drops to 30Hz when I go above those settings.
Also, Windows allows me to set 59Hz or 60Hz but when I check AMD settings it goes back to 30 Hz for some reason.