Xamarin.Forms ListView exception on Android

I'm getting this exception on my Samsung S4 (Android 4.3) from time to time:

10-27 19:37:28.769 D/dalvikvm(23478): WAIT_FOR_CONCURRENT_GC blocked 1ms
10-27 19:37:28.779 D/InputReader(  694): Input event: value=0 when=7911607600000
10-27 19:37:28.779 I/InputReader(  694): Touch event's action is 0x1 (deviceType=0) [pCnt=1, s=] when=7911607600000
10-27 19:37:28.779 I/InputDispatcher(  694): Delivering touch to: action: 0x1
10-27 19:37:28.799 D/dalvikvm(23478): GC_EXPLICIT freed 34K, 16% free 44619K/52516K, paused 2ms+4ms, total 34ms
10-27 19:37:28.960 I/MonoDroid(23478): UNHANDLED EXCEPTION:
10-27 19:37:28.960 I/MonoDroid(23478): System.NullReferenceException: Object reference not set to an instance of an object
10-27 19:37:28.960 I/MonoDroid(23478): at Xamarin.Forms.Platform.Android.FrameRenderer.Dispose (bool) <0x00048>
10-27 19:37:28.960 I/MonoDroid(23478): at Java.Lang.Object.Dispose () <0x0001f>
10-27 19:37:28.960 I/MonoDroid(23478): at Xamarin.Forms.Platform.Android.ViewCellRenderer/ViewCellContainer.Update (Xamarin.Forms.ViewCell) <0x00487>
10-27 19:37:28.960 I/MonoDroid(23478): at Xamarin.Forms.Platform.Android.ViewCellRenderer.GetCellCore (Xamarin.Forms.Cell,Android.Views.View,Android.Views.ViewGroup,Android.Content.Context) <0x000c7>
10-27 19:37:28.960 I/MonoDroid(23478): at Xamarin.Forms.Platform.Android.CellRenderer.GetCell (Xamarin.Forms.Cell,Android.Views.View,Android.Views.ViewGroup,Android.Content.Context) <0x0011b>
10-27 19:37:28.960 I/MonoDroid(23478): at Xamarin.Forms.Platform.Android.CellFactory.GetCell (Xamarin.Forms.Cell,Android.Views.View,Android.Views.ViewGroup,Android.Content.Context,Xamarin.Forms.View) <0x00093>
10-27 19:37:28.960 I/MonoDroid(23478): at Xamarin.Forms.Platform.Android.ListViewAdapter.GetView (int,Android.Views.View,Android.Views.ViewGroup) <0x0025b>
10-27 19:37:28.960 I/MonoDroid(23478): at Android.Widget.BaseAdapter.n_GetView_ILandroid_view_View_Landroid_view_ViewGroup_ (intptr,intptr,int,intptr,intptr) <0x0008b>
10-27 19:37:28.960 I/MonoDroid(23478): at (wrapper dynamic-method) object.a5140e10-b1ba-49a9-a2e9-dfdce2585eab (intptr,intptr,int,intptr,intptr) <0x00063>

Seems like a crash in Xamarin.Forms to me. Any ideas what could be causing this?