The image and text you load into the Facebook Share controls for your Campaign Site are cached by facebook, which means you may need to reset the facebook cache for your site in order to see your social sharing setting updates. Don’t worry, it’s easy!
If you have saved new Facebook Share image or text inside your Campaign Site Editor and it does not appear as expected when you share the page, try this:
1. Visit the Facebook Sharing Debugger: https://developers.facebook.com/tools/debug/sharing/
2. Enter you full campaign site URL and click “Debug”
3. Enjoy your new beautiful share image.
4. If things are still sticky... you can also try clicking "Scape Again"