I just picked up my Model X 75D in Hong Kong last month. But its Cruise Control, TACC, has some problems. Sometimes during TACC Cruise on the Highway at a speed about 90-100 km per hour, the car sharply slows down (with a Red warning and beep sound) although there is no car in front of my car at all. For some reason, the Cruise software thought there is a car right in front of my car. A sharp slow down is quite scary as the car behind me may crash into my Tesla. The Tesla Technician says it is a common issue for the newly delivered Model X. I need to wait for the new software update to see this problem. It may take about 1-2 month. However, my foot is very sour when stepping on the acceleration pedal all the time. Does anyone else have similar problem?