Discussion extends beyond the top of the page
I embedded vanilla in a Wordpress offline installation and imported the dummy data. The strange thing that is happening is that the discussion named "Use this post to edit all CSS elements" extends upwars, several hundreds of pixels beyond the top of the page. I attached a screenshot in which you can see what happens thanks to Chrome inspect.
I am using the Headway theme, maybe its a conflict with it.
The other discussions work correctly. Any suggestion?