Adding a new font to my wysiwyg editor
 

I've been searching all day and having an issue I can't figure out.
I've imported a custom font from Google using a link in my header, and I have added the new font to my list in my Toolbar Menu Options.
It works when viewing a post, however it does not show when creating a post.
The selector shows the font style but when typing it doesn't display the message in the correct font. It's not until you post the message that it is displayed in the new font.
Is there a file that I need to edit somewhere that I am missing to give me a true wysiwyg?
All the other fonts that are included with vBulletin display as they should.
Any help would be greatly appreciated.