Good morning. This morning I flew my MA2. When flying a distance of less than 200m .. suddenly there is a warning interference signal..then the RTH comes up. So when RTH, the video image turns green as shown below. Why is this? Then I restarted the DJI Fly application again and the green color disappeared. firmware last updated DJI Fly is 1.2.0 version. Anybody has the same problems?