UrhoSharp doesn't work with MvvmCross in Xamarin.Forms Android project

[bogdanbujdea]

When I call

await urhoSurface.Show<UrhoApp>(new ApplicationOptions(assetsFolder: null) { Orientation = ApplicationOptions.OrientationType.LandscapeAndPortrait });

I get this error:

System.InvalidCastException: 'Specified cast is not valid.' 10-24 12:10:15.331 I/MonoDroid(22572): UNHANDLED EXCEPTION: 10-24 12:10:15.339 I/MonoDroid(22572): System.InvalidCastException: Specified cast is not valid. 10-24 12:10:15.340 I/MonoDroid(22572): at Urho.Forms.AndroidUrhoSurface.Launcher (System.Type type, Urho.ApplicationOptions options) [0x0008f] in <4f2ed849f9044063a00907b1dcc872ae>:0 10-24 12:10:15.340 I/MonoDroid(22572): at Urho.Forms.UrhoSurface.Show[TUrhoApplication] (Urho.ApplicationOptions options) [0x000e9] in <4f2ed849f9044063a00907b1dcc872ae>:0 10-24 12:10:15.340 I/MonoDroid(22572): at FormsSample.Views.MainView.OnAppearing () [0x00033] in D:\repos\3D\test-projects\FormsSample\FormsSample\FormsSample\Views\MainView.xaml.cs:33 10-24 12:10:15.340 I/MonoDroid(22572): at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.<ThrowAsync>b__7_0 (System.Object state) [0x00000] in <6de48997d0c0445dbea8d4d83492d8c6>:0 10-24 12:10:15.340 I/MonoDroid(22572): at Android.App.SyncContext+<>c__DisplayClass2_0.<Post>b__0 () [0x00000] in <11a340ccc8de43f09c97400139266ef5>:0 10-24 12:10:15.340 I/MonoDroid(22572): at Java.Lang.Thread+RunnableImplementor.Run () [0x00008] in <11a340ccc8de43f09c97400139266ef5>:0 10-24 12:10:15.340 I/MonoDroid(22572): at Java.Lang.IRunnableInvoker.n_Run (System.IntPtr jnienv, System.IntPtr native__this) [0x00009] in <11a340ccc8de43f09c97400139266ef5>:0 10-24 12:10:15.340 I/MonoDroid(22572): at (wrapper dynamic-method) Android.Runtime.DynamicMethodNameCounter.31(intptr,intptr)

This error only happens when you use UrhoSharp inside a Xamarin.Forms Android app which uses MvvmCross. My guess is that in the Launcher method from AndroidUrhoSurface it gets an instance of MvxFormsAppCompatActivity instead of a FormsAppCompatActivity instance. Can I solve this somehow? I already tried deleting bin/obj folders, restarting Visual Studio, Windows, etc.

I have attached a sample that can reproduce the issue.
FormsSample.zip