Assembly Design > Using Assembly > Regenerating Parts and Assemblies > Resolving Retrieval or Regeneration Failures > About Children of Failed Components and Features
  
About Children of Failed Components and Features
Direct children and lower-level children of failed components and features may not regenerate until you resolve the failure.
There are 3 types of children of failed components and features:
Models in which all parent references are failed.
Models in which only some parent references are failed.
Lower-level children of models in which all or some references are failed.