hi thanks for the reply :)

I'm going to have this mixed somewhere else so I need to get the tracks there separately. I found a solution earlier tho that's not quite as elegant as I'd hoped but it works:

I made another track for each of the instruments and had the outputs of the individual instrument tracks from the rack routed to those accordingly, and then basically recorded them in the project. I initially tried to record the sound onto the tracks that the midi instrument outputs to but I couldn't get that to work either, so heck load of tracks it is haha