I found several bugs in Article Manager 2.8 yesterday so I went back to 2.7. This first bug appears on the home page as a separate block. It says it cannot find an article in a red font and then proceeds to create normal looking Article Manger block below it with all of the current articles. Then I tried to create a new article it said the template was missing. I do not know why I did not find these bugs earlier.
While trying to identify the source of the bug, I ended up screwing up the tables and had to selectively restore the tables from backup. It sure is nice that bluehost.com performs daily, weekly, and monthly backups.