Hidden Parts wont show up in assembly when I unhide them
There are a bunch of hidden parts in my assembly I want to see but when I unhide them with the "show" button they don't show up. If I open up just the part by itself, it just opens up an empty part. I can see the outline of the part when I hover over it in the navigation tree but I can't find any way to enable it. Any help would be appreciated!
I was sent this file so maybe it has something to do with the parts being on someone else's computer but half of them load so I don't really know why it's not working.
Below is a picture of the hidden parts and the outline I can see. Clicking suppress, activate, or show doesn't do anything.

This is what I see when I open the part. It only ever has the outline. (I made sure the display style isnt in wireframe)


