People use their keyboards in different ways.
I did some experiments. Apparently, the MIDI clock is always running, but only transmits out MIDI when the style is playing. I tried playing some Preset Multi Pads and adjusting the Tempo and the MPs responded. Turning the Left Voice on allows the Multi Pads to follow your left hand chords. If melokeyz doesn't want to hear the left-hand chords then he will have to turn the volume down for Left.
I have never used Multi Pad Creator to record a Pad, but my understanding is there is no quantize option like with Style Creator. So it is possible that what he is hearing is the notes out of time. We need more information. Maybe he can post the Multi Pad so we can take a look at it.
If he has figured out the problem, I hope he will post what he has found out.
Joe H