my blog link cannot be previewed on Facebook, it happened to be broken and cannot display.
Have you tried with all of your plugins disabled? It's possible that another plugin is conflicting with your sharing within the theme.
ok, I'll try to do that now
still didn't work, the error is og image missing with other og meta tags
Can you go to the live theme demo and try sharing an article the exact same way and see if it works?
Same problem for me!
i've tried a plugin for facebook preview beside YOAST but no sollution.