I've been using a plugin called Microblog Poster on my hosted Wordpress site to auto-publish blog entries to LinkedIn, Facebook, Twitter, etc.
I have made no changes to the plugin, the plugin hasn't updated, basically everything has been the exact same. However, within the past 5 days, LinkedIn has stopped displaying the shared image as a large image, when it has been consistently sharing it as a large image before.
It will share the image, but it's now a thumbnail, showing approx 140px x 70px to the left of the shared link's title. Normally, it should show as a large, 525px x 275px image above the shared link's title.
Again, no changes have been made to the plugin, my process, or anything. Facebook and Twitter are still displaying normally. I've even done several tests with different posts to confirm it was not a fluke.
Would love any thoughts on how to fix this, or if anyone else is having this issue.