Site shows up in dmoz search, but not in directory

Hi, quick question:

When I do a Google search "site:dmoz.org ourdomainname.com", the first result is a search result page on dmoz.org.

It looks like the site is there, it shows the category, and the link to our site; even has a description. But when I click on the category that it shows, the site's not listed.

Anyone have an idea what's happening here? Thanks.

PS - Title should probably have read "...but not in category", not directory!

It's a bug. Our rudimentary search sometimes continues to show a site as listed when it no longer is. The actual category is definitive.