I'm trying to update meta tags for a specific page. I'm using the "live meta tag editor". I go to my page, and update the missing tag, in this case "og: title" writing "test".

I press save and the popup confirms the change. "Meta tags for this page have been saved."

But when I go back to the page, it's not there:

There is an open bug report for this issue at present. We will have this resolved in a future maintenance release