I’m also facing same issue. My URL’s are working in other social sites except Linkedin. And I have tried this 2. https://socialdebug.com/ debugger. It shows Grade ‘A’ for linkedin still am unable to publish my post.
I am also facing same issue. How to fix this one? And in comments page getting this error ERROR: You have entered an incorrect reCAPTCHA value. Click the BACK button on your browser, and try again.