OK.....on a quick check I did.....
First Category ID
Clothing, Shoes & Accessories > Girls > Clothing (Size 7) > Dresses with Cat # 3053
I then clicked on Choose Item Specifics and got pop-up for Condition with options for New: with Tags, New: without Tags, and Pre-Owned. (Looks like that item is more than the New or Preowned you previously saw.)
I then clicked on Custom Item Specifics and got a pop-up with Brand, size type, Size, and Product Type for fill-ins. (You didn't mention if your item has them.)
Hmmm...perhaps it's a problem with a specific item, and not my first test. It looks like Item Specifics work for some.
Category apparently now provides drill-down on things like size and Item Specifics have condition and more detail on product. Again, just wonder if they've updated and your prior build of the listing is dated prior to the changes.
Danno