Having Problems with X360 Wired Controller

Hi everybody

I'm having some problems with Mame UI 64 and X360 USB controller

Mame works fine and default config allows to use Joystick n°1 with every single game but when I Plug my controller it appears to be controller n°2... I tried a lot of different USB ports but nothing changes...

Any suggestion?

Thanks!

Not that easy, but described here:

"MAME - Mapping your controllers for stable IDs": https://www.youtube.com/watch?v=YmjfwLuZ_X0

https://docs.mamedev.org/advanced/devicemap.html