If you select a KryptonHeaderGroup or a KryptonNavigator at design time and then perform a copy & paste it fails to copy everything.
If your KryptonHeaderGroup control contains several child controls then the newly pasted copy would have the original controls leaving the source header group with none. So instead of copying it was moving the controls. Obviously this is somewhat undesirable!
The problem occurs because the designer class for the header group overrides the AssociatedComponents property but fails to pass on the results of calling the base class. It is this returned collection of components that need to be copied, so failing to provide the full list meant the child controls are not copied but just moved instead.
The same problem and solution are applicable to the KryptonNavigator as well. Here it is even more obvious because the pages would not be copied across.