HI Rich
Maybe this will help after you have tried my last post suggestion of a simple set up

Here is a SEQ file that I made by opening a BIAB mgu in Realband.
From the pic you will note that the first 8 tracks are designated as BB tracks that means they have retained their respective BIAB track and channel defaults,
Therefore drums are on track 2 channel 10 and the other tracks follow BIAB default track and channel assignments as well.
You will also note that it is sending to my virtual midi synth however this gets over ruled by my midi preference reroute MIDI playback to default dxi/vst synth in this case Coyote WT

You will also notice I have Classic Track view open very handy view to see what goes where (CNTR 9)

The seq file can be downloaded from my box net link below.
https://app.box.com/s/dk6pbqja8cmlu6gvpem1mq0r8gfldy5i

Hope this helps a bit
Mike

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Last edited by Mike Head; 04/07/18 04:09 AM.
BIAB2021 UltraPlus,AsusN55S1Tbssd, W10/64,Akai EIEpro
Yamaha CVP405,SquireStrat, CoolsoftVMidSynth
Novatation Impulse61 Ctr kbd, Cwalk blab Kontakt

http://mikesmusic.byethost16.com/