I think that's the issue when you use DLSS and HDR together. I'll have to test it again as soon as it comes out on Steam. I don't remember correctly as I played it on PC game pass and don't have a subscription anymore.It works fine on my Vega56, I just tried it.
On a different PC with a 2080ti it seems there's some kind of gamma problem that leads to a washed out image, with blown-out whites too.