This may be something simple, but I can't find it.
I made a Speedpak of an assembly. I selected several bodies and a number of surfaces to keep. No problem. I can move the cursor over the areas I kept, and they show up fine in the cursor circle.
However, when I use that assembly in a higher level assembly, the selected surfaces and bodies become invisible. Why? In the higher level assembly I can switch back to a normal configuration and everything is fine, but as soon as I switch to the speedpak, stuff goes away.