A supposition: that may only be applicable for Mavic wheels with 'QRM SL' bearings. The bearings preload for these wheels is done when tightening the wheel, with the QR lever or thru-axle. If the preload is not sufficient, you'll have play in the bearings, which may explain this noise. The caliper blocks the brake, but because you have play in the center lock, moving the wheel will then create an unwanted vibration in the wheel.

So, if you have QRM SL bearings, and you notice play in the bearings, try tightening the wheel a bit more and see if it still happens.

A supposition: that may only be applicable for Mavic wheels with 'QRM SL' bearings. The bearings preload for these wheels is done when tightening the wheel, with the QR lever or thru-axle. If the preload is not sufficient, you'll have play in the bearings, which may explain this noise. With the rotor blocked, moving the wheel can create some unwanted vibration in the hub that are then propagated and create this noise.

So, if you have QRM SL bearings, and you notice play in the bearings, try tightening the wheel a bit more and see if it still happens.