This same issue has happened to me one time and has not happened since. It could have been a very dangerous situation when it occurred because I was entering onto what is usually a very busy highway from a stop sign, but fortunately there was no traffic at the time. Since this has never happened before and I was not expecting it, it took me several seconds to react and realize what had happened. As I accelerated away from the stop sign the engine revved up extremely because the transmission kicked out of drive, and I was in the middle of the intersection not moving. I remember the D was flashing on the rotary knob, and after realizing that I was not in drive I shifted back to neutral then drive again and the transmission went back into gear and I was able to proceed. This potentially could have caused a very serious accident had there been any traffic coming.
FCA definitely needs to investigate this issue before someone is seriously injured !!!