Poser can end up carrying extra material listings in a .cr2.  The non-functional materials, those which aren't present in the .obj file referenced by the .cr2, can be deleted using a text or poser file editor.

I'm surprised that such listings would mess up MAT files, though.    Unless something else is happening.  :unsure:

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.