Spent 2 hours wondering why Unity Engine sees my 2 joysticks as Joystick 1 and Joystick 5 (or 6 depending on a UBS port).
Turns out, for some reason, Unity remembers ALL the ports that were ever used (even with the usb extender). That's documented...exactly nowhere. Ok, at least I figured that out, but what am I gonna do about it? Nothing, there's no way to change the order.
So after a quick nervous breakdown, and a cigarette break, I decided to build and run the game, just to see how it looks, and...what's this?
Everything's working! Unity removes all the joysticks from it's array and puts only active ones in the right order and that too is documented...NOWHERE!
Ugh... Unity I still love you, but god damn, GET YOUR SHIT TOGETHER!!!
Needless to say, this day is an emotional roller coaster.