Did you render?
Crease angle is only calculated at render time.
I would start by normals forward and crease angle at 180 and render.

You can set crease angle for every part in the parameters palette, or for the whole scene.
Goto General preferences, and set the crease angle there. 'default is always 80 but you can go to 180.

But from here, it looks more like a problem in the mesh.

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