Shrinkwrap Associativity
Shrinkwrap features are associative and automatically update to reflect changes in the parent copied surfaces. Shrinkwrap features are updated when components have been added or removed. You can control the dependency of the Shrinkwrap feature on the surfaces it references. The independent state is useful if you wish to avoid unwanted regeneration cycles.
When a sub-feature of a shrinkwrap fails, the shrinkwrap feature will also fail. Right-click the failed feature and redefine the references.