[darkcanvas]

I have the same problem and yes, deleting the entire post will re-link the related post image, but that is a bit extreme. Can you guys please have a look at the related post code and fix the bug?
It happens when an images used for featured image gets deleted from teh media library. After that, no matter which image we choose as featured, it will not be linked in “related posts”.

With firefox dev tool I grabbed the code for an image that worked, adn below for one that failed. Please check

<figure><div class=”overlay”><div class=”thumb-info”><i class=”icon-file-alt”></i></div></div></img></figure>

<figure><div class=”overlay”><div class=”thumb-info”><i class=”icon-file-alt”></i></div></div></img></figure>

[darkcanvas]

I can tell you how I fixed mine, if that helps.

I installed “404 notifier” plugin.

This told me exactly what file triggered the 404 error. Close inspection of that file on the server revealed wrong permissions on that and a few other files in that folder there. They all should be 644.

[darkcanvas]

I isolated the problem for you.

You have a conflict with the [caption] shortcode. Add an image with caption to your demo page and you’ll get  the error.

J

 

[darkcanvas]

This is a test post i setup for you on a fresh installation. WordPress has nothing but your theme and your demo content.

http://flexform.candidtown.com/test-post/

[darkcanvas]

Found it:

For some reason a bunch of files on your wp-content/themes/flexform/includes/sf_shortcodes installed with the wrong permissions. 666 or 777 instead of 644. The one that caused the 444 error is the interface.php file.

Any idea why those files were copied with the wrong permissions?