Hi! My website is actually with a kinda coming soon page active (the site isn't publicly available), I use to remove the links from my images (I want my image to show only in the post itself, I don't want that a person clicks on it and then goes to a page only with the image, which is why I remove the link from my posts images) and I'm using a plugin called Linked Image, that makes every click on a post image goes to the post itself.
I've already enabled and disabled all these features, and when I share a post on facebook the post thumbnail doesn't show up. It did show up sometimes before but now it's never showing up.
Considering all I said, I presume the only explanation for the missing thumbnail is the Ultimate Coming Soon Page plugin that I'm using while my website isn't finished. Nevertheless I think I should be able to test if everything is working fine before my website gets publicly available.
So, any ideas on how can I fix this missing thumbnail?
Thank you very much!