Is there any particular reason why this figure's OBJ's body parts aren't welded together?

The screenshot is what happens when you use a smoothing brush on it in ZBrush.
I guess forget about using ZBrush for any FBM's for this figure...

*Poser Pro 2012 SR3 added GoZ. Does this not export a welded version of the figure to Zbrush? It should because it would be worthless if it didn't. (I haven't tested it because I use colorcurvature's Morphloader and export scripts, which work flawlessly in my experience.)

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