HDR makes everything green and purple

This is clearly some kinda color format issue, but I’m not sure how to fix it. I have a Radeon RX580 (Polaris) and a HiSense U7 4K HDR TV, and the colors just turn green and purple when I turn HDR on… I feel like this is probably fixable with some simple override setting I’m not aware of, but it’s my first HDR TV