Fixing Appearance?

Hello,

I have a part that changed appearance somewhere along the way. It looks great at the start of my motion study. However, it changes about a second into the playback.

It is a component in a sub-assembly. Is there an easy way to fix this without having to scrap the entire study.

The part is supposed to be translucent. However, it turns opaque. I don't want that.

Please help!

ß!

SolidworksMotion Studies