I've searched through many threads dealing with Ground Station and can't find anything related to what I've been experiencing. I apologize if I missed this issue elsewhere. I have confirmed all firmware / software is up to date in both the vision and my Android. I fly in NAZA mode - GPS. Compass calibrated. I can configure Ground Station fine, and the Phantom will fly the flight plan exactly as programmed. However, during the flight, two things happen. First, several times during the flight, the Ground Station app will display a message saying it is uploading waypoint data to the Phantom, and it lists the waypoint numbers it's uploading one after the other until all are uploaded. It doesn't take long to do this either (seconds). The second thing that happens is when the Phantom reaches a waypoint, It stops, rotates to the direction of the next waypoint, rotates back to the direction is was heading, then rotates back to the next waypoint direction and proceeds to the next waypoint. It does this for every waypoint. I have a friend who flies his Phantom with me and his does not behave like mine does. No waypoint update or rotation. Any ideas? - Thanks in advance.