Creo ModelCHECK > teacher > PTC Creo ModelCheck Teacher: Dimensions that Will Not Regenerate
  
PTC Creo ModelCheck Teacher: Dimensions that Will Not Regenerate
Sometimes when a drawing is retrieved, Creo Parametric informs you that a highlighted dimension can not be regenerated. This means that a dimensional reference can not be found because it has been either redefined, deleted, or suppressed in the model.
Any dimension that Creo Parametric can not regenerate will be displayed in red.
To successfully regenerate the dimension, the reference must be redefined or rerouted to a new entity.