Over on our news site, http://news.tubefilter.tv, we post anywhere from 2 to 5 articles a day. Occasionally, we schedule our posts so that stories are spaced out a bit, but we mostly publish stories as soon as they are ready to go.
For a few weeks, we have had no problems, but in the past few days we have had one recurring problem.
We will post a story, and anywhere from 5 minutes, all the way to 6 hours, after being published, the post will disappear. When we go into the back end, the post is back as a draft, and anywhere from 5% to 90% of the formatting done in the wordpress editor will be gone. As you can imagine, it's a huge pain to have to go back, fix the whole thing, get all the links the way they were, and repost the story, and it definitely messes with our traffic numbers. Also, it means that all of us here at Tubefilter have been obsessively checking the site to watch for posts gone MIA.
We are running WP 2.5.1, and the plugins installed and active are:
Draft Notifier 1.1
Feedburner Feedsmith 2.3.1
WP-DBManager 2.31 (This was installed after the problem began to ensure we had a backup of our WPDB)
I did some searching, but I only found one person with a similar problem, and no responses, so that wasn't any help.