not intuitive? thx for the comments, but I'm no rookie... I use VSTi(s) in Sonar, Live and Maschine quite a bit... they all have idiosync's, but in every case what should happen is...

(1) Midi is routed to the VSTi
and
(2) the VSTi routes audio to the assigned interface...

not really hard to understand...

but what I am seeing is "BIAB is not sending midi to the VSTi loaded in the first slot" of the instrument track's plugin dialogue.