That's the way BIAB works, Bill.

The legacy track names (piano, bass, drums, etc) and their associated channels are based on generating accompaniments by the use of styles.

When you import a MIDI file, it doesn't put the bass part on the bass track or the piano part on the piano track. Everything gets loaded into the Melody track. You can use the Sequencer feature of BIAB to rechannel those tracks, but if you select the same channels as something generated via one of the style tracks, you are going to get multiple sounds playing on the same channel with that same instrument.

Most people usually bring in a MIDI file to extract a melody or a solo or a particular riff, and then channel it to deconflict with the other BIAB parts. If you really want to just work with the MIDI file, I would also suggest using RealBand instead.

John

Laptop-HP Omen I7 Win11Pro 32GB 2x2TB, 1x4TB SSD
Desktop-ASUS-I7 Win10Pro 32GB 2x1.5TB, 2x2TB, 1x4TB SATA

BB2025/UMC404HD/Casios/Cakewalk/Reaper/Studio One/MixBus/Notion/Finale/Dorico/Noteworthy/NI/Halion/IK

http://www.sus4chord.com