Sound familiar? You changes something in Wordpress and now the fusion builder button is not appearing in your post or pages, instead all you see is code. I’m not talk bout the little Fusion shortcode generator button, I’m talking about the big Fusion Builder button which allows you to build pages using the Fusion Builder, you’ve lost it, it doesn’t even appear at the top of of your Wordpress post or article. Sound like the issue?
Worry not. I might have the solution.
from Andrew Brett Watson.com