Newbie Here - Hyperspin not allowing starting of any emulators or games

[hyperexcited]

Hello everyone. I've just installed my first Hyperspin on my Nvidia Shield.  Following Youtube tutorials, I've managed to setup the vast majority of stuff including the latest retroarch configuration.  To avoid complications, I connected a wired, rather than wireless xbox controller.  Retroarch for some reason detected it as a Logitech / Generic Xbox controller.  I also manually mapped all the controller buttons correctly.

I finally went ahead and ran Hyperspin.  It seems to work perfectly with a gorgeous intro and menu system.  However, weirdly, It won't let me start any games.  Pressing any buttons on the controller will either show the Quit menu, Android About Box or just make the menu jump to beginning or end.

What am I doing wrong and how do I map the controls for Hyperspin?

Thank you.