Just checked:
I'm still on Version 3.5.3
When going to:
Options -> Addons -> Plugins (in the top bar then)
My "Gamepad and Joystick Hotkey Support" is Version 1.2
It is "Enabled" and apparently you can "Reload" it or "Uninstall" it.
I'd say give the "Reload" a try and if it isn't working, Uninstall it and install it again!
To install it again, Click on "Browse online" at the top left next to "My Addons" and type "Gamepad" into the search bar.
Now that I'm looking at it, I think I did exactly that...
Hope that helps!
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