[Chua Ah Kiang]

Zhao,

Now thing become interesting, I have used a new xcable for test, same result, I even change a new usb midi interface cable(the one with usb, midi-in, midi-out) to do further test, both generate extra code:

midi interface cable1:

midi interface cable2:

I use a arturia bitstep pad to do program change, using same midi interface cable, never generate extra code, also, roland sound change patch correctly.