Strange ScrollView Overlapping Behavior on Android.. Possible Bug?

So Here is my Xaml:

   <StackLayout>
         <Image Source="{Binding ImageSrc}" HeightRequest="300"/>
         <ScrollView x:Name="TagsList" IsVisible="{Binding QuestionsVisible}">

         </ScrollView>
    </StackLayout>

And in the code behind In the constructor of this view, I add a load of different things to the ScrollView nested inside StackLayouts...
E.g. I add a Label and TextBox to Stacklayout and add it to the ScrollView.

And I get strange behavior where my ScrollView is overlapping my Image when I scroll up..

Note: This doesn't happen on Windows Phone and I havent tested on Iphone but I will try today...

Here Is an image of what happens

Highlighted in Green is the scrollview and Highlighted in blue is my Image