LinedIn Sharing issues

Hey we are having some issues with sharing to linedIn, there have been a couple of issues, firstly the post linked below when trying to share to linkedin will display the wrong description with no images. I have enabled open graph and it can been see in the source that it is set to the correct thing however it displays s different post or page content. – https://blog.signetresources.co.uk/technology-recruitment-change-better/.

Other posts will will show images and other will not.

At the moment I have added the following link <a href="https://www.linkedin.com/shareArticle?mini=true&url=<?php the_permalink(); ?>&title=<?php the_title(); ?>&summary=<? echo $myExcerpt; ?>&source=blog" class="se_linkedin_button"> which produces the right content but will not produce any images.

Any advice on what to do to get it working correctly would be greatly appreciated.

Thanks