Some Contacts Not Pulling Through Export

Hi all-


I pulled a large Export for a mailing list. I used Address Processing. For Org. Address, I have "Export contact's address" checked, and have Primary and Secondary Contact Types selected. I also have in Step 3 to pull the Org. address if no contact is found. Most of the contacts pulled through just fine, but there are about 30 who's contact didn't and I have no idea why. The contact relationship is marked perfectly, with the contact box checked and their type as Primary or Secondary. 


Does anyone know any reason some contact wouldn't be pulling through? It's driving me nuts!