inconsistent color properties in animations

I'm doing an animation in a large assembly (500+ parts). Atone point SW crashed and when I autorecovered, it reloaded all theparts as light weight. Certain parts also reverted to gray whenthey were colored before. Other parts show as wireframe when theyshould be hidden. The only parts affected seem to be ones which arehidden at some point in the animation.

I decided to ignore the aesthetic problems for the moment and getthe movement correct so it's been a day and many saves since thishappened, but now I would like to fix the discoloration.

Any ideas?SolidworksMotion Studies