I am creating the entire song in BIAB which includes several Utility tracks. I then save the .mgu file. Next I open it in BIAB-VST within reaper and the utility tracks are not there. In addition the midi patche on the melody track is not the save patch the file was saved with. But that latter is just BIAB being BIAB.


BIAB – 2026, Reaper (current), i7-12700F Processor, 32GB DDR4-3200MHz RAM, Motu Audio Express 6x6 - My SoundCloud.