I'm still using EE version 1.6.9 for one of my sites. On this page (http://www.logogala.com/designer/details/phil-heroux/) you can see a list of entries which are associated with this "designer" using the reverse_related_entries tag. There are three entries (global change leaders, red/blue barber shop, and blue atala) that still appear on this page yet when clicked, they take you to a 404 page. I've looked in my EE admin area and tried to find these entries and they are gone. No trace of these entries yet they still appear on this page using that reverse_related_entries tag. So... I'm at a loss; no idea what's going on or why these entries would have just vanished from the database yet still appear to show on this "designer profile page."