Looking at your images of it in Max, it looks like (and i could be wrong, not sure how max displays), judging by the edge lines that those pieces with the hole in the middle are made by cutting a circle through a box, and the walls around the hole look like NGons (more than 4 vertices per face), could GameGuru be trying to adjust for them and collapsing them into the hole? (NGons can do screwy things with GameGuru)
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