IOS Location – didUpdateLocations not called

I am trying to get location. Issue is that
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) and locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) are never called.

I am asked for permission. I grant it. When I call startLocation second time:

    DispatchQueue.global(qos: .background).async {
        let gpsController = GPSController()
        gpsController.startLocation()
        
        sleep(10)
            DispatchQueue.main.async {
                gpsController.startLocation()
            }
    }

I can see that permission is granted.

import Foundation
import CoreLocation

class GPSController : NSObject, CLLocationManagerDelegate{

let locationManager: CLLocationManager = CLLocationManager()
static var lastLocation : CLLocation? = nil


func startLocation(){
    locationManager.delegate = self
    
    // Sprawdź status usług lokalizacyjnych
    if CLLocationManager.locationServicesEnabled() {
        switch locationManager.authorizationStatus {
        case .notDetermined:
            print("notDetermined")
            locationManager.requestWhenInUseAuthorization()
            break
        case .restricted, .denied:
            print("Denied")
            break
        case .authorizedWhenInUse, .authorizedAlways:
            locationManager.startUpdatingLocation()
            print("authorizedWhenInUse")
        case .authorized:
            print("authorized")
            break
        @unknown default:
            print("@unknown")
            break
        }
    } else {
        print("turn off")
    }
    
}

func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
    print("didChangeAuthorization")
    if manager.authorizationStatus == .authorizedWhenInUse {
        locationManager.startUpdatingLocation()
    }
}

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    print("didChangeAuthorization")
    for currentLocation in locations{
        Loge("Location : \(currentLocation)")
        GPSController.lastLocation = currentLocation
    }
}


func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
    print("error")
}    

}