(iOS) Button Click doesn't get hit when adding Grid layout (xaml)

I created simple blank Xamarin forms project. When I add the Grid layout object to my xaml, button clicks don't get hit. If I remove the grid, button clicks code is getting hit. Any ideas what is wrong?

Note: Fixed markdown in this discussion to correctly display the XAML.

XAML:

<?xml version="1.0" encoding="utf-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" 
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:local="clr-namespace:BlankForm" x:Class="BlankForm.BlankFormPage">
    <Grid >
        <Grid.RowDefinitions>
            <RowDefinition Height="20"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="53"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <StackLayout Orientation="Vertical" Grid.Row="0" Grid.Column="0">
            <Button x:Name="Connection" Text="line" Clicked="Handle_Clicked"/>
            <Button x:Name="Btn2" Text="Btn2" Pressed="OnPress" Clicked="Handle_Clicked2" ></Button>
        </StackLayout>
    </Grid>
</ContentPage>