I was out flying yesterday and in the middle of the flight my location changed in the FPV booster app. The wand was located where I was and it was pointing at the Phantom and then on the screen it flipped 180 degrees and then came back and then jumped to the other side of the screen. In this picture I am actually standing at the home point but from what this is showing I am about a mile or so away. After I noticed this I came back and landed and then went on another flight and had the same issue but this time my location was already a mile away to start. Then today I went out for a flight and had the same issue. To start off my location was not where I was standing. Any thoughts on what might be going on and how to fix it? I am using an iphone 6 and when I go to my maps app it shows my exact location so I know it isn't the iphone 6's GPS.