Social Signal for Xing is not dosplayed

Hi There, i can create all kinds of social signals in the theme. LinkedIn, Facebook, Twitter. All good. But when i insert the code pointing to a Xing profile it doesn't work. For example: This is just fine: https://www.linkedin.com/in/guidodeckstein/ This doesn't work at all: https://www.xing.com/profile/Astrid_Schau You can see the menu here: https://astridschau.de/ Is there somebody who can help me out? Thank you very much. Cheers Guido