Product Sub-Categories do not show up, after moving products

[Kevin205]

A client had created a master category called Specials (cPath 52) and a sub-category called Clothing Specials (cPath 53). By mistake, customer places all their products under sub-category Clothing Specials (cPath 53).

Last week he decided to organize his specials, and adds several more categories called Jackets (cPath 58), Pants (cPath 59) and Shirts (cPath 60) under Specials (cPath 52). Through admin he then moves these sub-categories to Clothing Specials (cPath 53).

Then he moves all products to their proper sub-categories.
From:
Home > Specials > Clothing Specials
To:
Home > Specials > Clothing Specials > Jackets
Home > Specials > Clothing Specials > Pants
Home > Specials > Clothing Specials > Shirts

After all this when he goes to the following URI:
domainDOT.com/index.php?main_page=index&cPath=52_53, none of the other sub-categories (Jackets, Pants and Shirts) show up. Even thought all newly created sub-categories and products show up in admin, where they are supposed to be.

When he goes to domainDOT.com/index.php?main_page=index&cPath=52_53_58 URI, all the Jackets show up, and the same with Pants and Shirts.

What could be causing the subcategories NOT to show up?