Creo Direct > Designing in the Creo Direct Environment > Working in Assembly Mode > Working with Missing and Failed Components
  
Working with Missing and Failed Components
A model can always be retrieved in spite of failures in retrieval of a component or of missing components. The behavior in case of a retrieval failure is described below.
Missing and failed components are highlighted in red on the Model Tree.
Failed components with missing geometry are not available for editing.
The placement of failed components is frozen. Such components are not highlighted on the Model Tree.