I am having trouble with my Mavic pro. I start everything and allow the drone to update the home point and everything that it needs to. As I start flying the controller gives me an error saying 'system error check app', and on the screen the top bar goes orange and says ' In flight (vision)'. With this it flies on its own, when I leave the controls it continues flying, it does not go into a hover. It does not respond to the return home command. If I loose sight of the drone and do not stop it, it will continue flying away, it is like it does not recognize the home point anymore. I have calibrated the Vision System, but I still have the same problem. As soon as I start flying it give me a message saying week satellite signal. I have had the drone for about a year and have logged 58 hours in 270 flights.