[A6] voice 13 has noise on some patches

[Shawn O.]

I noticed yesterday that when I am using Amsterdam kick patch and going 
through the voices 1 at a time voice 13 has a very noticable level of 
noise to it, I can turn the noise knob down to remove the noise, but  if 
i re initialize the patch its back again on voice 13,. this is after 
turning the  unit off, doing voice / vca tuning etc,. I can only really 
produce this phenomenon with this one patch so far.. as long as this 
does'nt mean that the voice circuit is going bad or in need of repair I 
guess i can deal with this, has anyone else experienced something like 
this and then the voice in question later has big problems ?

Thanks

~Shawn O'Brien