Thanks for posting your question in the forum and sorry you are experiencing this problem with PI AF. Chances are a save/check-in step is being missed here. However, as a friendly suggestion, I would like to invite you to forward your question to our regular Tech Support. They are the ones who are very well staffed and specialized in these types of end-user questions and troubleshooting.
OSIsoft vCampus is a community dedicated to programming and integration with the PI System. We look forward to seeing your programming-related posts in the future