Gamecube C Stick

I need your help fellers, I'm sure you've seen it all so I came here. I recently just bought a new gamecube controller along with the 3 in 1 magic joy box. I have calibrated the buttons and sticks, except the left and right of the c stick. The very first time I used the controller they worked perfectly, but when I opened up Dolphin the next time, they spazzed out completely. I've tried most of the other axis settings, and none seem to work. I use a mac and the latest dolphin if that helps at all. One million brownie points to anyone who can figure it out.

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