Throwing a "me too" into the pile:
Anything connected to the USB headers on the Commander Pro causes windows to constantly connect/disconnect those devices - in my case it's the Corsair RGB Hub that comes with the QL120 3 pack and an NZXT Hue+ (both of which work fine via a different USB hub or directly to the motherboard.
Specs:
Asus Crosshair VIII Hero (WiFi)
AMD Ryzen 5900X
32GB Corsair Vengeance 3600Mhz (2x16GB)
Nvidia RTX 3070 FE
1TB Samsung 970 Evo NVMe
850W SilverStone PSU
Windows 10 Pro (20H2)
Quite annoying as I bought the Commander Pro with the USB headers in mind to help tidy up cabling so really don't want to resort to another internal hub. Motherboard running latest bios, latest chipset drivers and ICue and Commander Pro firmware both up-to-date.