If you are trying to use the commit track feature on your final mix bus to save individual files but it keeps consolidating I might have a solution for you.
First, obviously make sure you have un-checked the “consolidate track” box.
PT12 has a -144dbfs floor. So, if you have any plugins that add saturation, distortion, hiss, or any noise at all – chances are when you commit the track you are getting one long file because the levels are above -144. You can either turn off the offending plugins (for me, those causing problems included my waves L3, L2, and H-Delay just to name a few), or you can cheat and put a gate at the end of the mix and then bounce down.