Unit designs sometimes don't show correct items held, and item stats, even though they have the chosen stats and items when built. This happens whether editing an existing design or creating a new one. Might only be related to Henchmen (not sure) and/or global renaming of Amulet of Warding to Amulet of the Lazy when the item is picked up from Nimbly.
Also, one time when I trained a henchmen and had to specifically reselect all their items in the unit design dialog (I edited this particular unit design) I was given two of each item I reselected. http://i1062.photobucket.com/albums/t496/Steven-Aus/MultipleIdenticalItemsOnCreationHenchman_zpsb178d48e.jpg
