exporting separate tracks on mpc studio

Okay let me explain what I'm doing. I create my song, I separate all of my drums to individual tracks. When I export the song in song mode, it separates all of the plug in instruments, but for some reason, its putting all of my foots, kicks, snares, closed hats, and samples onto one track. It used to do that before, but if I can recall correctly, I would click on the greyed out tab, (which I can't remember what its called because I'm not in front of it) and then it would take its time and track out everything very slowly. For whatever reason its not doing that anymore.