S88 Mk1 ONLY Plays Ch. 1 in ST4

KingKonga

I know I've had this issue before, and I looked all over the forum for any previous posts, but I can't find them. I've got the same problem I seem to have every time I use SampleTank4. I've got 3 ch.s using 3 different instruments, and I remembered to assign each of them in the ST Mixer section to 3 Separate Outs. Now, if I play the virtual keybd with my mouse, everything works fine. The sounds and signals go to their properly assigned ST4 ch.s. But when I try to play any channel other than ch. 1 (Bass) using the S88 then ONLY the Ch. 1 Bass makes a sound, but the MIDI is transmitted to all 3 ST ch.s.😕

Thanks.