I find the problem, but do not know how to fix or where the problem comes from.
I use the Automatic Youtube Video Posts Plugin. I deativated it and then the featured images are shown. Maybe its a problme with the timthumb ???
I made a screenshot (screenshot.13.png) of the HTML output with and without the Automatic Youtube Video Posts Plugin. https://www.wuala.com/lordmord2010/Explus/
Is that problem coming from the ExcerptsPlus for Headway Grid or from the Automatic Youtube Video Posts Plugin?
The Websites URL is http://allesneu.preussen-schaufenster.de/
