Reply to Midi Fighter Classic and S4 issue

I'm having trouble trying to use my midifighter to control all 4 decks on traktor s4 scratch pro 2.
I'm able to control deck 1 without trouble but 2,3, and 4 are a no go.
Row 1 buttons 2, 3, 4 cue effects for deck 2, though.

Maybe I missed something on the tutorial video, but can someone help?