Have you just updated the Meta Title or Meta Description on your site... Then tried to share the link on Facebook... Did it still show up the old Meta Title or Meta Description?
The reason for that is Facebook scrapes your pages every 24 hours... So wait 24 hours and try to share the link again...
So now your thinking what an annoying post no real solution??
Well there is!! Force facebook to scrape your page by submitting your URL to Facebook Developer Debug Tool
Instantly updates! Re-share your link! Happy Days!!!