@Donna, @Billy - If you saw this happen with one of your web content records, I would suggest re-cloning it and getting rid of the bad cloned one where this happened. If you cloned one before where this was happening it is still slightly connected to the original because in the designer it will show them with the same content but on the actual page that people will see the will both show the correct content. But to make it much easier I would suggest re-cloning.
@Joris - There seems to be an issue with IE and some of the HTML Components not showing up and we are working on a fix for that with top priority.