I’ve had the watch about a month first ten runs no problem great product.But the last 2 runs when I download to the app only the last third of run is plotted on the map.My mileage data,heart rate etc is all correct it’s just the map logging data that’s missing.When I look on the watch at the map it’s missing there as well only shows last third.When I set off I appear to have GPS.Any help greatly appreciated.