Sharing your brand new post or review on Facebook is almost mandatory.
Unfortunately, in many cases you can notice an incorrect post thumbnail showing up when you share your articles on Facebook ...
After seeing a few questions related to this issue here within WA, I've decided to create a short tutorial to show you how can you fix the Facebook incorrect thumbnail problem in WordPress.
Interested?
Let's do this!
So ...
The first obvious question ...
Why Facebook is not picking up the thumbnail image?
Well, the truth is that are many reasons that can prevent Facebook from correctly "guessing" the right thumbnail image.
However, one of the most common reason is having multiple images set in the "og:image" tag and having a featured image that is smaller than the rest of your images.
But as I said, the list is quite long ... Among other causes are caching plugins, CDN issues, missing open graph meta tag for the thumbnail image, etc.
And often becomes a very annoying problem, because usually there are no specific error messages displayed when using the debugging tool, therefore it's really hard to guess what’s causing the actual problem ...
So let's see a few solutions ...