Diffix Colmesh Error

I made an all-colmesh map file in Constructor using the Auxiliary/NULL texture. I exported it as a "Legacy TGEA DIF". Then I ran the interior through DifFix for Mac (I have 10.6.8 ). It seemed like DifFix did a lot to the interior, but eventually it stopped with a line reading "ERROR: Can't handle VehicleCollision yet!Finished step". I tried again a couple of times, making sure the map itself didn't have any problems (no entities, no platforms being too big, putting all curves in a separate file), and I still had no luck. Is there something I'm doing wrong?

BUMP

Just looked at the diffix source and it's strange that your dif would have that error happen. Can you post it here (or send it to me if you don't want to release it publicly) and I'll take a look, because that error generally shouldn't be appearing.

Here's the file in zip format (because I can't attach a dif).

BUMP

Hey, sorry for the delay, got caught up in other things.
So I inspected the dif file, and it apparently has 0 Surfaces in it. From what I can see, everything else is fine except for the complete and total lack of surfaces. Yeah. I'm not exactly sure how that happened, but that dif is toast.

I'd recommend reexporting it, seeing if there are any errors, and seeing if it's different than this dif. That's about all I can offer.