@noel....try to use the onboard USB ports for the WMR headset if possible.
You may have to try different combinations to get rid of the error messages.
Make certain to plug the USB cable in first...before the HDMI.
As an example I have an MSI X470 Gaming Plus, the WMR will give that exact error if I use the two USB 3.1 Gen1 ports labeled as VR ready.
I am plugged into the other non-labeled ...also USB3.1 Gen1 ports and the system is stable as a rock.
I don't understand that one either but I can duplicate the error consistently just by switching the USB cable.
Those USB cards can sometimes be quite problematic....matter of fact, I just sent one back yesterday.
It was an internal powered card but it 'flat-out' refused to recognize anything but a memory stick, directly plugged into it.