I'm using Cakewalk by Bandlab with the VST3 version of BIAB (v 4.5.10). When I select the style I want for this particular song (_OLDEN.STY), everything works great. Each instrument has it's own designated tracks. Perfect.
The problem comes in when I add additional instruments into open slots. For example, when I add an additional acoustic guitar (3412: Guitar, Acoustic...) which is a double of the guitar that is already in the track, then suddenly the original guitar is merged with the mandolin track. They merge onto a single track. If you mute the mandolin, it mutes both instruments. If you solo the Guitar 1 track, it's silent.
Also if I add yet another track (a banjo instrument, for example), then the guitar/mandolin will un-merge, but the banjo will double with something. It's very pecular.
I've not yet played this game with other styles yet. Can anyone else duplicate this problem?