I'm flying my P3S in areas where I don't have internet access, so I rely on loading the map where I have internet access and the app caching the map. Usually it works, but sometimes when I power on the ipad air 2 at the location with the latest DJI Go App, I find there is no map so I only have the arrows on a gray background until I have internet access again to load the map. Any ideas why it sometimes loses the cached map?