I was confused becuse the contents of the two lists were merged, and my pending posts were eearlier in the list than one I had posted earlier in the other list.
A HTML and CSS forum appeared in the Web Design subcategory some time before it disappeared from the main list. I had been posting to topics in both lists. They are now the same list.
I was confused because an older topic from the subcategory list appeared higher in the list than the newer topics I was looking for from the old list. I had stopped looking when I saw the old topic.