Except for me. One fell off the valve stem and beat itself to death in the wheel.
Yes, this has happened to you, one other person, and myself. This can rarely occur with the "snap-in" type of Autel sensors where the valve stem is anchored to the wheel with the lock nut, but the body of the sensor "snaps" onto the back of the valve stem. The snap mechanism can fail, and the sensor body can then fall off and will be loose inside the tire.
I'm now purchasing and using the "screw-in" type of sensor where there is a retaining screw that holds the body to the valve stem. This eliminates any chance of the sensor body detaching from the valve stem inside the tire.