In this example, a user finds that when parts and subassemblies are selected and then suppressed, they disappear from the PathFinder.
In this instance the User has somehow set the option to remove suppressed components from the PathFinder.
To show these suppressed occurrences, please select the root node in the Pathfinder, RMB click and select "Keep Suppressed Components".
After this, suppressed components will show up in PathFinder.