Yesterday i flew with my phantom 4 when I got a signal lost. I immediately pressed the RTH button on the remote but it did not work. The I saw the green light went red on the remote. Lucky I found the drone via GPS tracking safely landed 700m away. When i checked the the flight record the home point was updated at the point where the signal was lost. Has this happened to anyone? This is the first time the aircraft has done this. In the past when I press RTH the aircraft comes home.