Problème configuration manette pour joueur 2

[jdwarfer]

Hello!

I tried to use a Xbox pad for multiplayer.
I plug it in, configure it. It seems fine because it works well on menus.
But then when I launch a game (Bomberman 2 on Nes), the pad is detected but marked as "not configured". So it doesn't work in the game, and on top of that, it messes with the Retrostone 2 hotkeys which are not working at all at this point. So I can't exit the game pushing select and start or whatever.

What do I need to do to make the additional pad working in games? What did I miss?

[Admin]

My guess is that the pad is not configured for the NES emulator. Usually emulation station would automatically configure retroarch emulators. But maybe for some emulator it's not.
Have you tried to configure the gamepad in retroarch for the specific emulator you want to use?