Hello! I have two phantom 4 drones for my business. I originally had one, and then I had to send it back to be replaced so I got another just because I rely on that drone everyday. So the original came back and still showed the error of Gimbal Disconnected. DJI replaced the remote controller. They said they tested it and it was fine. Now I get home to find the issue has not resolved. On the new drone, I flew it in the morning and when I went to fly it again in the evening it also is showing gimbal disconnected. What do I do? We tried new cords connecting the ipad to the RC, reconnecting the RC to the drone, factory resetting the iPad, getting a different SD card.