I'm trying out XenForo 1.2 RC1. After importing my data from vbulletin 3.8, my users' existing posts don't seem to be attached to them. When I visit a user's profile page and click "Postings", I get "This member does not have any recent content." The user's Messages count is correct. Clicking "Find all threads by username" also returns nothing. I just rebuilt the User Caches to no avail. Where should I look?