To expand on what Zoomer said.   Symbols (and groups) are "Container" objects. That means that they "Contain" other objects. Each of those objects has a class as does the container object.   In order for an object to be visible, its class AND the class of every CONTAINER object it is contained in needs to be visible.   Over the years this has caught many people. One of the places is people trying to find objects that they know are in a certain class. They set the Cl