Also the really odd thing is that I'm using a YAMAHA sustain pedal. This is the sustain pedal that shipped with my PSR-550. Never had to do a polarity reverse with it. I currently used the pedal with my Roland RS-70, and it reverses the polarity with no problem. Worked once on the NP, and now it won't. GRRRRRRRRRRRRRRRRR. I'll be calling Yamaha in an hour or so.
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.