since I set the MKUserTrackingMode to follow I get this error : [MKCoreLocationProvider] CLLocationManager(<CLLocationManager: 0x6000003b86d0>) for <MKCoreLocationProvider: 0x6000033b05a0> did fail with error: Error Domain=kCLErrorDomain Code=1 "(null)" and the map doesn't track the location of the gpx file either. What can you do there?