Run the check
Press one labeled control at a time and record the browser index shown.
Compare the game's bindings and the platform remapping profile.
Reset one mapping layer, then repeat the same control.
Read the result
Consistent browser events with wrong game actions implicate a game or profile mapping.
Limits and next step
Gamepad API indexes do not guarantee a universal printed-button layout.
Repeat the check after changing one setting or connection. Keep a record of what changed before deciding whether the device needs service.