Whole people are missing. I find a newspaper article I believe is associated with a person in my tree and attach it. 85% of the infomation in the article fits my people, but I can't figure out the other 15%. I come back later and it's gone. So then I think maybe the article isn't my guy. I start another tree to see how/if they fit. I attach the article to both trees, double check. Come back the next day to continue the puzzle only to find it gone again. It's like information found during the daily maintenance that doesn't conform to some master file gets swipe out. But that's my problem, I'm trying to see the connect.