this problem is actually common when trying to work with poser exports. sometimes the file doesnt create enough data for the normals to translate it. I always found the best fix is to export the model only in another format like .dxf and reimport it. or try manually assigning normal directions.
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And after calming me down with some orange slices and some fetal spooning,
E.T. revealed to me his singular purpose.
--TOOL, 10,000 Days---
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