This option requires defining Print Inspector Tracks to be associated with Color Library and/or Pallete. Without such definition, the system is not capable to determine which Library and/or Palette is the right one. 

To define such an association Expert login is required.

Open Print Inspector Track Preferences and go to setionSpot Colors and nCLR

Select Color Pallete and or Library. Take into account that if the same sample name exists in both locations - Pallete has a higher priority. (that enables to modify of color definition or tolerances for Project, Job or Customer. It can be also used if the Customer is using the common name ( like specific Pantone) is using e.g. Coated Library - but in fact is printing on different substrate where some modifications were approved.