Great
Quick recap for anyone finding this thread. If related posts feature isn’t working do the following:
1) Check that your posts have been indexed. Go to Jetpack->Debug (bottom of the Jetpack screen). Look for “Posts Indexed” which is good. If you don’t see this then it can take some time to complete, try again later.
2) Pick one of your posts that isn’t showing related posts. Go to the single post view. Add the part in bold to the end of the url https://www.example.com/some-post/?related_posts=1 you should get something like this
{“version”:”20140611″,”show_thumbnails”:true,”items”:[{“id”:647,”url”:”http:\/\/www.jamas.net\/2013\/wordpress\/647\/”,”url_meta”:{“origin”:661,”position”:0},”title”:”WordPress 3.8″,”format”:false,”excerpt”:”WordPress 3.8 \u201cParker\u201d has arrived, bringing with it a new, slick, UI for WordPress. The WordPress admin UI has always been one of WordPress’ big advantages over other CMS platforms.…”,”context”:”In \”WordPress\””,”img”:{“src”:””,”width”:0,”height”:0}},{“id”:621,”url”:”http:\/\/www.jamas.net\/2013\/wordpress\/wordpress-3-7\/”,”url_meta”:{“origin”:661,”position”:1},”title”:”WordPress 3.7″,”format”:false,”excerpt”:”WordPress 3.7 \”Basie\” has arrived. This brings a big update for updates! Going forward updates to the WordPress core will automatically be done. This is sure to help with some…”,”context”:”In \”WordPress\””,”img”:{“src”:””,”width”:0,”height”:0}},{“id”:510,”url”:”http:\/\/www.jamas.net\/2012\/wordpress\/wordpress-3-5\/”,”url_meta”:{“origin”:661,”position”:2},”title”:”WordPress 3.5″,”format”:”aside”,”excerpt”:”WordPress 3.5 \”Elvin\” has arrived. Featuring an even easier to use media upload environment, which from my quick test is really slick. Many of the people I help with WordPress…”,”context”:”In \”WordPress\””,”img”:{“src”:””,”width”:0,”height”:0}}]}
Look for any extra characters being printed in the output. For example a comment from a plugin, or some extra styling from css. If you see some extra data then you need to figure out what is causing it. Try default themes and turning off plugins until you find what is mangling the output.
3) If the above output looks like what you are getting then see if there is any thing in your theme that might be hiding the related posts output. Try doing an inspect element in your favourite browser debugger (Firebug or Chrome Developer Tools). See if there is anything whacky in the css.
Good luck!
