I’m having this same issue. I disabled wp.me shortlinks, but I don’t know how to change them to ow.ly or bit.ly.
I also added two tags, since I’m having this issue through Publicize (not just when others share, but when it pushes my posts to my Twitter or Facebook). Here’s what I see: https://markdavidjohnson.net/wp-content/uploads/2014/07/Capture.png
