watchOS - map shows for an instant, then replaced with blue screen

I have a watchOS app that shows a map with the device's current location. This works as expected on a simulator.

On a device in TestFlight, the map shows for an instant, but then the map area turns blue.

When I zoom in and out, again, the correct map shows for an instant, but then the screen turns blue.

I have a couple of images to illustrate the issue:

I'm attaching the mapping code below:

        super.awake(withContext: context)
        
        
         
        if CLLocationManager.locationServicesEnabled() {
    
            locationManager.requestAlwaysAuthorization()
            locationManager.requestWhenInUseAuthorization()
                     
            locationManager.delegate = self
            locationManager.desiredAccuracy = kCLLocationAccuracyBest
            locationManager.distanceFilter = kCLDistanceFilterNone
            locationManager.startUpdatingLocation()
        } else {
            print("Problem with permissions")
            return
        }
        
        
        
        let span = MKCoordinateSpan(
                   latitudeDelta: 0.005,
                   longitudeDelta: 0.005
              )

        
#if targetEnvironment(simulator)
        let location = CLLocationCoordinate2D(
                           latitude: simulatorLatitude,
                           longitude: simulatorLongitude
                       )

        let region = MKCoordinateRegion(center: location, span: span)
        mapView.setRegion(region)
        mapView.addAnnotation(location, withImageNamed: "mapPinRed", centerOffset: CGPoint(x: 0, y: 0))
#else
        locationManager.requestLocation()
       
#endif
       
    }
    
    override func willActivate() {
        // This method is called when watch view controller is about to be visible to user
    }
    
    override func didDeactivate() {
        // This method is called when watch view controller is no longer visible
    }

    func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
        print(#function, "Status: ", status.rawValue)
        if status.rawValue == 0 {
            locationManager.requestAlwaysAuthorization()
            locationManager.requestWhenInUseAuthorization()
            locationManager.requestLocation()
        }
    }
    
    
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
            
        let currentLocation = locations[0]
        let lat = currentLocation.coordinate.latitude
        let long = currentLocation.coordinate.longitude

        self.mapLocation = CLLocationCoordinate2DMake(lat, long)

        //let span = MKCoordinateSpan.init(latitudeDelta: 0.1, longitudeDelta: 0.1)
        let region = MKCoordinateRegion.init()
        self.mapView.setRegion(region)
        
        self.mapView.addAnnotation(self.mapLocation!, with: .red)
    }
    
    
    func centerMapOnLocation(location: CLLocation) {
#if targetEnvironment(simulator)
       
        
        let region = MKCoordinateRegion(center: CLLocationCoordinate2D(latitude: simulatorLatitude, longitude: simulatorLongitude), span: MKCoordinateSpan(latitudeDelta: CLLocationDegrees(zoomValue), longitudeDelta: CLLocationDegrees(zoomValue)))
       
        DispatchQueue.main.async {
            self.mapView.setRegion(region)
           
            
        }
#else
        let region = MKCoordinateRegion(center: CLLocationCoordinate2D(latitude: location.coordinate.latitude, longitude: location.coordinate.longitude), span: MKCoordinateSpan(latitudeDelta: CLLocationDegrees(zoomValue), longitudeDelta: CLLocationDegrees(zoomValue)))
       
        
        
        DispatchQueue.main.async { [self] in
        self.mapView.setRegion(region)
        self.mapView.addAnnotation(location.coordinate, withImageNamed: "mapPinRed", centerOffset: CGPoint(x: 0, y: 0))
       
      
    }
#endif
        
    }

My permissions are set in Watch.extension info.plist as follows:

Privacy - Location Always Usage Description
Privacy - Location Always and When In Use Usage Description
Privacy - Location Usage Description

I  would appreciate any help.