Short of solved. I have my website in two different languages, French 20% and English 80% user base ( approximately ). What I exactly did is to sacrifice French for English when Sharing URLs to Linkedin, and only then. Linkedin ignore the page’s title/description that you put using YOAST plugin and only cares about the normal titles field that show up when you start editing/posting stuff, normally. I decided to set the title of the page ( or Article ) to be the same in both version. and No more shortcode showing. Hope you found this useful. If this isn’t clear I would be happy to explain it further.