Picade max joysticks (both) suddenly quit

This evening my kid and I were playing with our 3 day old Picade Max (and loving it!) when suddenly both of the joysticks stopped responding.

It’s odd - all of the pancake buttons connected to the board work. Joysticks don’t respond. I’ve checked settings, unplugged and replugged, and rebooted and nothing.

What should I check here? What’s expected on the gpio pins connected to the sticks?

Could this be a board failure? Buttons working but joysticks not seems very odd.