Photoview 360 changing Part appearances when moved to Assembly

The image on the left is a part (sldprt) - the laser is patterned and mirrored. Photoview works correctly .

When the same part is inserted into an assembly, Photoview seems to lose the material data for the mirrored and patterned solid bodies. This is starting to get very frustrating for me as it is happening over and over. Does anyone know of a fix or solution for this problem?

Thanks

SolidworksPhotoview 360