BTW, you know you’re in Joystick mode because you’ll see “Joystick” in “8Bitdo NES30 Pro Joystick”. If you we’re in Joystick mode, the name wouldn’t have “Joystick” in it.
FYI – the wiki needs to be updated. Specifically Step 5. In RetroPie 3.6, there is no more “Configure joystick/controller for use with RetroArch” option.