I have the same issue. But I found a workaround (with only one slight problem...)
The temp fix I found is:
1. Update to latest Nvidia GPU Drivers
2. Go to the folder where iCUE is installed. By default it's: "C:\Program Files\Corsair\CORSAIR iCUE 4 Software\iCUE.exe"
3. Then right click iCUE.exe -> Properties -> Compatibility -> Change settings for all users -> Run this program as an administrator -> Apply -> OK -> OK
4. Then make VBS script. (I use Notepad ++, but notepad itself should work fine as long as you save the file as .VBS and select All Files while saving)
Put the following code in the notepad: (and only change the location where iCUE is if needed)
Set WshShell = CreateObject("WScript.Shell" )
WshShell.Run """C:\Program Files\Corsair\CORSAIR iCUE 4 Software\iCUE.exe""", 0 'Must quote command if it has spaces; must escape quotes
Set WshShell = Nothing
5. Save the file, give it a name and add .VBS as file extension!
6. Press Win key + R and type: shell:startup or go to C:\Users\YourUserAccountName\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
7. Drag and drop the script (VBS) file you made in that startup folder. Then iCUE will launch with administrator permissions on boot.
The only slight problem I found is that I can't bring iCUE to the foreground anymore, a quick fix is to quit iCUE from the taskbar and then re-open iCUE.
I hope I could help some of you guys, since I've experienced this issue for a few weeks now with my ASUS ROG Strix GeForce RTX 3080 OC White graphics card.