when TabView is inside Stack and item is added dynamically to the RadTabView, the content of this first item does not layout as expected. 

<StackLayout> <Button Text="Add" Clicked="OnAddClicked" /> <Button Text="Remove" Clicked="OnRemoveClicked" Margin="0,5,0,5" /> <Button Text="Clear" Clicked="OnClearClicked" /> <telerikPrimitives:RadTabView BackgroundColor="Red" x:Name="tabView" AutomationId="tabView"/> </StackLayout>