wordpress multiple content blocks plugin will not update page

I am using the Multiple Content Blocks plug-in on self-hosted Wordpress, both up to date. The additional content blocks don’t edit for me. I have added the code to my page template for additional content blocks. The editors show up, no problem, I enter some text, click update on the page, and then the text just disappears during the update! The original block that makes up the page works fine. If it helps, I notice that the WYSIWYG and HTML buttons in the editors for the additional content blocks are greyed out. They do something when I click them though. The page I am working on is http://www.moneylinksonline.com/index.php/videos

Thanks!