As link you can use the same as with my og:image issue:
http://dev.pro-taucher.de/tauchplaetze/afrika/aegypten/strasse-von-gubal/carnatic/
The screenshot looks pretty boring as nothing is filled out or marked. ;-)
http://dev.pro-taucher.de/yoast_wp_seo_twitter_issue.png
If it helps and as this is still a site under development, you could have access to the site itself if you won't put the site apart or upside down. ;-)