CarouselView sizing issue on iOS only

[glenr4]

On Android CarouselView works fine for me, it sizes itself correctly and so I can see my buttons below it. However on iOS I get this:
https://drive.google.com/open?id=0B_xcMUIAqWMSSXpvY0pwTFdtUEk

I added a red background to the CarouselView for debugging purposes. As you can see there is a huge amount of unnecessary above the picture.

My Code (MainTemplate is a ContentPage which is inside a TabbedPage):

<?xml version="1.0" encoding="utf-8" ?>
<local:MainTemplate xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:r="clr-namespace:OTL.Renderers"
             xmlns:ffimageloading="clr-namespace:FFImageLoading.Forms;assembly=FFImageLoading.Forms" 
             xmlns:cv="clr-namespace:CarouselView.FormsPlugin.Abstractions;assembly=CarouselView.FormsPlugin.Abstractions"
             xmlns:local="clr-namespace:OTL.Views"
             x:Class="OTL.Views.MyStuff">

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>

        <local:TopBanner Grid.Row="0"/>

        <!--Main Content-->
        <StackLayout Orientation="Vertical" Grid.Row="1" Margin="20, 0, 20, 0">
            <StackLayout Orientation="Horizontal" Margin="0, 30, 0, 0">
                <Label Text="My Stuff" 
                       HorizontalOptions="Start" 
                       Style="{StaticResource LargeHeading}"/>

                <Label Text="" HorizontalOptions="FillAndExpand"/>

                <r:HighlightButton Image="add.png"  
                                       HorizontalOptions="End"
                                       Command="{Binding AddPhotoCommand}" 
                                       Style="{DynamicResource ImageButton}" />

                <Button x:Name="forceLayout" Text="Force layout" />
            </StackLayout>

            

            <StackLayout x:Name="carouselWrapper" Orientation="Vertical">
                
                <cv:CarouselViewControl HorizontalOptions="Center" VerticalOptions="Start"
                                          AnimateTransition="true"
                                        InterPageSpacing="2"
                                          IsSwipingEnabled="true"
                                        Orientation="Horizontal" 
                                        Position="{Binding CurrentImageIndex}"
                                        ItemsSource="{Binding MyStuffFiles}" 
                                         BackgroundColor="Red">
                
                    <cv:CarouselViewControl.ItemTemplate>
                        <DataTemplate>
                            <ffimageloading:CachedImage HorizontalOptions="Center"
                                            VerticalOptions="Center"
                                            Aspect="AspectFit"
                                            Source="{Binding .}"
                                            DownsampleToViewSize="True"
                                            LoadingPlaceholder="logo_wh_large.png"/>
                            
                        </DataTemplate>
                    </cv:CarouselViewControl.ItemTemplate>
                </cv:CarouselViewControl>

                
                <!--Delete Button-->
                <r:HighlightButton Image="delete_rd.png" 
                                       
                                       Style="{DynamicResource ImageButton}" 
                                       Command="{Binding DeleteCommand}" 
                                       HorizontalOptions="End" />
                <!--IsVisible="{Binding ArrowsVisible}"-->

                <!-- Arrow buttons -->
                <StackLayout Orientation="Horizontal" HorizontalOptions="Center">
                    <!--Previous Button-->
                    <r:HighlightButton Image="prev.png" 
                                       
                                       Style="{DynamicResource ImageButton}" 
                                       Command="{Binding PrevCommand}" 
                                       HorizontalOptions="Start"
                                       VerticalOptions="Start"/>
                    <!--IsVisible="{Binding ArrowsVisible}"-->

                    <!--Navigation Text-->
                    <Label Text="{Binding NavText}"
                           Style="{StaticResource SubHeading}"
                           
                           VerticalOptions="Center" />
                    <!--IsVisible="{Binding ArrowsVisible}"-->

                    <!--Next Button-->
                    <r:HighlightButton Image="next.png" 
                                       
                                       Style="{DynamicResource ImageButton}" 
                                       Command="{Binding NextCommand}" 
                                       HorizontalOptions="End" 
                                       VerticalOptions="Start"/>
                    <!--IsVisible="{Binding ArrowsVisible}"-->
                </StackLayout>
            </StackLayout>
        </StackLayout>
    </Grid>
</local:MainTemplate>

[skadookkunnan]

Looks like this issue is back with the Xamarin Forms 5 SDK's Carousel View.