That did not work for me.

That did not work for me. I have had the form TESTFORM cloned, renamed, page title changed and am still stuck with testform on the pacebook page. Also still having problems with old images that are not even in the form anymore showing up on the facebook page

Hello,

This happens because Facebook keeps a cache of the links entered. This means that specific form URL shall have the same title and image because you have shared with them the link to the form previously already before you have made your changes.

You can follow the guide from this page to fix your issue on facebook sharer cache: http://sarahmarshall.io/post/97000108533/how-to-clear-the-facebook-share-cache-or-update-a

Feel free to get back to us if you have further questions.

Thanks.