[Android] MapView black after Intent.ACTION_OPEN_DOCUMENT

[moiatto]

I have more fragments.
when I open a picker with Intent.ACTION_OPEN_DOCUMENT in other fragment, then the MapView show black.

See this
video

What can it be?

Declared (no matter if static or not)

private MapView mapView;
private MapPreferences mapPrefs;
private Map map;

@Override
public void onResume() {
  super.onResume();

  mapPrefs.load(map);
  mapView.onResume();
}

@Override
public void onPause() {
    super.onPause();
   
    mapPrefs.save(map);
    mapView.onPause();
}