Title showing all languages

I had this problem before and was easily able to solve it by adding the following code: apply_filters('the_title',$post_title)

In a new theme I’m using the title is captured from an added field in the admin section. In the code it looks like this: echo $highlight->get('highlight_title');

If I change it to echo apply_filters('the_title',$highlight->get('highlight_title')); nothing changes.

In the source code I can see the title displayed like this: <!--en-->Careers<!--es-->Empleo

I hope someone can help me!

http://wordpress.org/plugins/qtranslate/