Suppose you tag a linked element in the host model, and the element moves in the linked model. Its tag moves with the element in the host view, maintaining the same relative position to the host.
If a tag’s linked element no longer exists, the tag is orphaned. The orphaned tag remains in the host view as long as the linked model is loaded. The tag does not display a leader. If the tag usually displays a parameter value, it now displays a question mark (?). The orphaned tag will be included when the view is printed or exported. You can move, delete, or rehost the orphaned tag.