Material collections are there to "only load" the materials. They do not load the hair or the clothing.

First you need to load the hair, then the material collection for that hair.

Those are 2 possibilities where you can get this message.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
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