I had two pre-planned flights today and I had the same problem both times. These were large areas right around the maximum with one battery each (in fact I over estimated on both flights, and needed a second battery twice). I turned on the remote and the drone. I fired up DJI pilot to set the home point. I then opened up the mapping app, took off, uploaded the mission and started. Immediately I noticed that the camera view was shuddering every couple seconds with black bars scrolling through the image. After a couple pictures were taken the camera view dropped out completely, and I saw a black and white image from takeoff on the screen. The drone kept flying the route, but the locator pin in map pilot never returned, and no gray dots were appearing. Both times I called it home using the remote (the app had completely lost communication) and landed visually. Both times I landed, closed everything and started the flight without dji pilot, and everything ran according to plans.