Xamarin.Forms.Maps centers to Rome before spanning to desired region

My map in XAML:

<maps:Map x:Name="PSMap" IsShowingUser="true" MapType="Street" />

I then use onAppearing:

protected override async void OnAppearing() { base.OnAppearing();

I also use MoveToRegion but the map still centers to Rome first before moving to the desired region. How can I change this?