Biab only has one midi output port, that may be your problem. That means all midi tracks generated by Biab must go through whatever you have set up as a midi synth in this case Saxlab. Since this plugin is a VSTi it is probably best used in Real Band not Biab. RB has 32 midi output ports, 48 tracks, it opens Biab files and it can do a lot of other things you should like.

Bob


Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.