For some reason I cannot see any part appearances on my computer. This is both in assemblies and completely independent parts. When I apply appearances they only slightly change the color but none of the details (wood grain, metal,...) are visible. When opened by a coworker on a different computer it is all visible. I attached an example. You can see how I've selected the wood, but there is no detail to the part. Only color. 

Interestingly, if I turn realview off, I can see the wood grain. If its on, the wood grain goes away. In neither case can I see the steel tread, while coworkers using the same server files can see it... 

SW2018