Reply to APC40 mapping help

I mapped the top row of knobs on my apc40 to control the highs on traktors mixer. I also mapped the [scene launch] button as "shift," and when pressed, the top row of knobs control the gain, one for each deck.

The problem that I am experiencing is that when I turn one of the knobs, it controls the highs for that particular deck perfectly, but when I hold shift and try to control the gain, the highs and gain are moving at the same time. Why does this happen and what can I do to correct this???

I am completely new to traktor, and extremely new to this whole mapping thing, so I'd like to understand the workings of whats going on.lol. Thanks!