GeolocatorPlugin: GetPositionAsync never returns, timesout or raises exception on first call

Bug Information

Version Number of Plugin: 4.2.0.0 Device Tested On: iPhone 5S iOS11.3 Simulator Tested On: N/A Version of VS: 2017 Version of Xamarin: 2.3.4.267 Versions of other things you are using: Xcode 9.3

Steps to reproduce the behaviour

Run the application for the first time under debug. Request position using .GetPositionAsync() Confirm the pop-up to allow permission for locations .GetPositionAsync() never returns, timesout, or throws an exception. Close app, launch again, no need for pop-up as permissions already granted, works fine

Expected Behavior

GetPositionAsync() should either turn a location, timeout or throw an exception. Have tried adding a timeout of 10s (Timespan) to the .GetPositionAsync() call and/or a cancellation token - still never returns

Actual Behavior

.GetPositionAsync() never returns

Code snippet

private async Task<bool> GetCurrentLocation()
        {
            var locator = CrossGeolocator.Current;
            locator.DesiredAccuracy = 100;
            if (!CrossGeolocator.IsSupported)
                return false;
            if (!CrossGeolocator.Current.IsGeolocationAvailable)
                return false;
            try
            {
                var position = await locator.GetPositionAsync(); // This never returns

                latitude = position.Latitude;
                longitude = position.Longitude;
                return true;
            }
            catch (Exception e)
            {
                string reason = e.Message;
                return false;
            }
        }

plist <key>NSLocationWhenInUseUsageDescription</key> <string>You are about to use location!</string> <key>NSLocationAlwaysAndWhenInUseUsageDescription</key> <string>You are about to use location!</string> <key>UIBackgroundModes</key> <array> <string>location</string> <string>bluetooth-central</string> </array>

Screenshots

N/A