I had the same issue, the setting to change the LCD screen in iCUE was missing. I spent almost 1 hour reading and trying so many things. Do a cold boot, power down, then either unplug power cord or flip power switch on power supply, wait 1 minute and reboot and it was fixed. Got a good laugh after that. Good luck!!
MB Asus z690-E Wifi Gaming, Corsair Dominator DDR 5 RGB, Windows 11 latest updates, iCUE 4.22.203.