Release Quality & Content Page as Initial Page in Android App

I'd like to set a ContentPage and not a navigation page as the first page shown in my Xamarin Forms android app. This doesn't seem to work on 1.2.1.6229.
To recreate

• create a new Blank App (Xamarin Forms Portable)
• upgrade Xamarin.Forms package to latest version
• run android app

The app hangs without the first screen being show. Can be fixed by embedding content page in navigation page but I don't want to do this.

thanks