Developer: I have received an error message when I updated a content item and recently just had a second error message. The error message disables my ability to access the content area completely. It an error message very similar to one that I have seen in Blackboard.
Current fix: hit back arrow until I return to the content item that I was working on and then click "revert to draft". I can then view the HTML code and clean it. The content area is then again viewable.