luktison

Hey, I’ve been facing the exact same problem and just solved this.

Go to the post edit page, in the sidebar – Language hit the + button to add another language version of the post. Then repeat this for each language and each post.

It seems the original custom post has no language assigned so you need to do it manually for every single post.

Let me know if this worked for you as well.

I am facing the same problem on fragile .cz.

All of the OG metas suddenly stopped working.
FB Sharing Debugger: The following required properties are missing: og:url, og:type, og:title, og:image, og:description, fb:app_id

Thank you in advance.