Character encoding problems

On the image below you can see sessions I've added few weeks ago (with the picture of the presenters), and sessions with the same title I've added today. Now the 'manage sessions' part has character encoding problems that weren't before.



Other parts of the site can handle these characters, but the great 'badge creator' fails again :(



We would really like to use Pathable for our event, so please help us to handle these problems.

Thanks:

Zsolt