Button Nested In Group Does Not Receive buttonSelected
I'm trying to structure my app so that each screen is in its own Group so that I can toggle visibility for each screen from the top level Scene. However somehow a button on a [child] screen despite having focus, does not respond to click events. If I have a button that's setup the same way directly as a child of the top level Scene, it works as expected.
What am I missing? Is Group not the right way to cluster / group a screen's elements? Is there something else I need to do to ensure elements in the child screen receive input events?
Here is the source code that demonstrates the issue: