У вашего броузера проблема в совместимости с HTML5
Now the Controller UI System uses unity's navigation events to select buttons without the need for list objects. We have also fixed a few issues and made the controller UI work with dropdowns and toggles.
Turning off buttons during game play no longer causes issues
Setting Up the Controller UI is easier now than ever, we have included the inputmanager.asset file so that you can simply import the corret inputs.