Overlap using GridLayout iOS issue

[sasabogi]

When two elements are overlapped using GridLayout, element below becomes unavailable because it is covered by another element. This is not the case with android. Code example:

<GridLayout rows="*">
    <StackLayout row="0">
        <Button text="TEST"></Button>
    </StackLayout>
    <StackLayout row="0">
        <Button text="TEST1" style="margin-top: 50;"></Button>
    </StackLayout>
</GridLayout>

In this example the TEST button is not clickable on iOS, while on Android both are clickable.