So all of a sudden I can't enable HDR in Windows. The second I click "Use HDR", the button just goes from being on to instantly off. Why could that be? Seems to be a Windows-side issue as on the monitor everything seems to be set up correctly to allow for HDR. Even before if HDR was turned off on the monitor it still allowed me to at least turn it on in Windows, even if made the screen not look quite right. I have tried different cables as well but still nothing. I have done nothing to the PC that should've caused this changed or made any Windows changes when it started to occur out of nowhere.