Dell HDR Monitor

After days of Dell 4k HDR monitor freezes and having to hard reset constantly, even doing to complete reinstall still failed. Refreshed all drivers still randomly freezes. Changed DP 2.0 cable in 10 bit to HDMI 2.1 cable in a 2.0 port  which only runs in 8 bit, when changed in Nvidia GE Force GTX1650 Super to 4:2:2 to get 10 bit, it froze again, so backed down to 8 bit which isn't true HDR, but seems to have so far resolved the freezing issue (for now).

Is anyone else having this issue?