Not sure what went on with my Mavic air II yesterday. I had it set to trace with my car as the target. It started out just fine following and maintaining distance as I drove but then it seemed to lose target and speeded up crashing into the back window of the car. No damage and it went into hover mode a few feet above the ground before I took over control. After that I just flew it manually to test out and see that everything still works. 
https://youtu.be/FtM11z1qmHo