Reply to Help a$ap! Using two controllers in traktor (admins please look at this)

hello everybody. so my friend and i both own maschine and have both been using them on our own for djing. i have my own .tsi file, and everything runs super smoothly. I've read a bunch of different posts/articles on the topic of using two controllers, but they all have to do with using two different controllers. I know that i must import the second tsi file using the small import, not the large, and i need to put them each in their own midi channel. my problem is that as soon as i plug in the second maschine, the first maschine stops responding completely. normally, when its in midi (w/o traktor open), the parameters still respond, but when the second maschine gets plugged in, it over rides the first one, and the first one totally stops responding (meaning led's dont light up; if a pad was lit when i plug in the second one, it stays lit, and doesn't respond to me pressing it). what do i need to do to get them to both run together? im really trying to avoid setting the second one up as generic midi and remapping it, but if thats the only option then, well, sucks for me. BUT ALL HELP IS APPRECIATED THANK YOU IN ADVANCE.