[bugreport] app becomes unusable after losing focus

Latest mobile app on iOS.
Do the capture, make the app lose focus (as could happen when switching to an application that alerts, or getting an incoming call). After returning to the Mapillary app, it does not capture images anymore. Stopping and starting the capture makes no difference.

There was an old bug like this that was fixed, so this is a regression.

Still the same with the latest app version.