Hey, thanks for the URL, we appreciate it since it sure helps us a lot when trying to analyze what’s going on with your FB thumbnails in the first place!
We tested it out with several of your blog posts, but as it seems, those thumbnails are picked up totally randomly, by no particular order at all — sometimes Facebook picks up your correct images (from the blog post), sometimes from our related posts, and sometimes even from outside of the body of your blog post (first example below — or this screenshot here).
Facebook picks up totally different thumbnails for this blog post: https://www.bionicbites.com/2014/04/better-korean-noods-nj/
But then again, everything seems perfect for this post: https://www.bionicbites.com/2014/03/healthy-eats-at-hummus-place-nyc/
Since we believe that this has got more to do with Facebook than with us, I’d strongly encourage you to use that plugin I suggested to you in my first reply, since it will give you total control over which thumbnail Facebook will use for your blog posts. Here’s the link: https://www.ads-software.com/plugins/facebook-thumb-fixer/
Let me know if this works out for you or if you have any more questions what-so-ever, since I’ll gladly help! Looking forward to your reply!
Take care & have a nice day!
Best,
Silvo