I have a Phantom 4 which had gimbal damage awhile back and ended up having the roll motor replaced. Since then I have a couple of symptoms that I can't get to the bottom of. On startup I need to hold the camera in position until it starts moving around or often it will end up hanging limp pointing downward at a strange angle. When I hold it straight off the start it will usually adjust and settle in the normal position. Secondly, during flight I often have issues where the camera will suddenly turn up and to the left focusing on the landing strut. If I move the drone very slowly it is less likely to do this but especially on faster turns from left to right it will often happen. If I start it up and simulate flight by turning it in different directions it is can take a very steep roll toward the left (left side down) but not much at all the other way. It is now very common to get roll limit warnings as well but I think that may have existed prior to the motor replacement. Any input and suggestions are appreciated.