[Plugin: Social] Preview broadcast and excerpt problem with Facebook

Hi,
I was discovered that when I go to broadcast the post, open a window with twitter option to check, and facebook option to check with a preview that show me the name, the url and the excerpr. Like I need to publish, but when I click the broadcast button, on Facebook the excerpt does not exist an show me the general content.
I was setting this options into the Post broadcast format {title} {content} {url} and nothing happens.
I think that, if I delete the {content}, at least Facebook show me the title and the url, but not, show me title, url and general content again… and the excerpt don´t appear.
Any idea?
Thanks in advance

http://wordpress.org/extend/plugins/social/