Independent Volume for External Instrument Channel Strips

I have the following:

A. Macbook Pro with MainStage 3.2.2 (MS3)

B. Audio/MIDI Interface - Native Instruments Audio Kontrol 1 (AK1) connected via usb .

C. MIDI Keyboard and Tone Module - Yamaha Motif ES6 (ES6) via MIDI In&Out to #1 above.

D. MIDI Controller - Korg NanoKontrol (KNK) via usb.

My intention is to use mostly the ES6 as my sound source or tone module in MS3 (and MS3’s Ultrabeat once in a while) controlling everything from MS3.

I also intend to use ES6 as the only MIDI keyboard and KNK as the only slider/fader-type MIDI controller.

What I want to do is create splits/layers in MS3 using (1) ES6 sounds and (2) using KNK to control volume of each instrument.

So, what I did is:

1. Create a patch.

2. In the new patch, create 4 channel strips of "External Instrument" type with the following parameters:

Where "X" is from 1 - 4:

a. MIDI Input - In Audio Kontrol 1

b. MIDI Output - Out Audio Kontrol 1

c. MIDI Channel - Channel "X"

d. Format - Stereo

e. Input - Input 1-2

f. Output - Output 1-2

3. In each External Instrument Channel Strip, I set the following in the Inspector:

a. Send Program Change check box to checked, and value of 29

b. Send Bank Select checkbox to checke, Bank MSB of 63 and Bank LSB of 0.

c. I then set the other 3 Channel strips the same except for different ProgramChange, Banks MSB and Banks LSB, of course to get different sound for each of the 4 Channels.

Expectation:

Each fader (Channel Strip or KNK faders) will independently control the volume of each channel/Instrument in the splits/layers.

Each Mute/Solo button will also independently control each channel/Instrument in the splits/layers.

Results:

Unfortunately, Volume Control for each External Instrument Channel Strip IS NOT independently happening.

Testing:

Here is what I did to test it:.

a. I first lowered ALL sliders/faders for the 4 External Instrument Channels I setup. No sound as I played the keyboard, as expected.

Then,

b. I raised the fader for JUST Channel 1 or External Instrument 1 and I hear ALL 4 External Instrument Sounds. I only expected the instrument in Channel 1 to come out of my speakers.

Then,

c. I raise the fader for Channel 2 or External Instrument 2 and I hear what seems to be, again, all 4 from Channel 1 PLUS all 4 again.

Same result when I raise Channel 3 and 4 faders. It seems like end up with 4 instruments x 4 channel per key on my keyboard when I raise all 4 faders.

ANY HELP is appreciated. Thanks for reading to this point int the long post.