When I get to the "Save to Headset" step in the MRC application, the button shows the "working" spinner and then makes no more progress.
Connection to the headset was successful, I selected the proper webcam and went through the 10(!) calibration clicks. The "Save to Headset" button gets enabled and when I choose it the spinner appears -- and then nothing else happens.
The "Restart calibration" button is still enabled and still works.
If the headset times out, the application immediately reports "Connection closed."