Remapping keys for player 2 problem

Hello guys,
I have one little problem with KI, when I remmap keys for player 2, I save changes, and it is right while i am in-game, but if I exit game and re-launch it, changes were not saved.

Is there any configuration file to edit?

Thanks and regards!

Re-map from character select, make sure when you next boot up the controller you are using has the same stock layout as the controller you re-mapped with.