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First of all, you may want to check if your identification results have been filtered in the same way. To do this:
Identifications tab (you can retreive it from the main menu Window > Identifications).Shift key (or Ctrl key for a disjoinct selection).properties. <different values> appears for a given property, it means that this property is different for the group of selected identifications. If the property is the same for all the selected identifications, the property value appears.