Wiki Editor Appears twice – any help?

I’m having an issue with the wiki editor appearing in two places, outside of the container and within the container. you can see it in action here:, the odd thing is that I have it working perfectly on a staging website which can be found here:

A few things, I have not edited any of the php files included in the plugin. I’ve only pulled the wiki categories into a page template and create a custom taxonomy category page for the wiki categories.

Any ideas?