I have a backing track I'm working on and have imported a midi bass line that I created in Guitar Pro. When exporting the song as an Audio file the bass line is not there. Normally I will drag the tracks into my DAW and do the final editing and mixing there. In this case I just wanted to send an mp3 to a friend to give them a sense of how the arrangement was coming along using micro chords to create the required 16th note shots. I don't see any check boxes in the render to audio file dialog box that refer to anything specific to midi.

I'm not using a midi keyboard controller etc. I simply imported the bass midi file that was exported from GP. Looks like it came over on channel 5. I edited a couple of the notes at the very end and they show up in the midi editor in BB as being on channel 1. Switched them to channel 5 for the heck of it and the bass still plays fine within BiaB. I also have it set to General Midi patch 34 Finger Electric Bass. I did notice that when I first open the song in BiaB the midi bass track says Electric Bass Instrument: 0 <no patch change>. But if I start playback and stop then the 34 patch pops in. Any ideas why the midi bass is not being exported along with the other tracks? The track is not muted.

BiAB 2024 UltraPak (Build 1111)