Propagation rules are ignored under certain circumstances:

1. Drag/drop operations. At the time when feature elements are added to the list of elements to process, it is not yet known if the user will drop the elements while pressing the <Ctrl> key to activate a copy operation. Therefore, the entire feature instance must be added to the list in case a copy is requested. The drop copy could occur in another MicroStation session.

2. Clipboard operations. For clipboard operations, complete feature instances must be copied to the clipboard so that when pasted to the same or other MicroStation session, a complete feature instance is copied.

3. When copying a feature instance with MicroStation copy commands, if the source model is a reference model, then the entire feature instance is copied.

4. Delete of root feature element.