I am in the process of writing a very long post — currently 8,500 words and around 40 images, with more to come — and, all of a sudden, the preview doesn’t work: It just shows empty content, with the header loading correctly. The symptoms are the same as described on this page, however I am not using any shortcodes. (Although, maybe that wouldn’t matter: If the problem is with PHP’s RegExp, then whether there are shortcodes or not, length will still be an issue.)
Unfortunately, this is on a managed server, so I have no way of changing the PHP.ini file. As such, what are my options? If this is the likely cause, presumably the only thing I can do is split my post into several. Any other ideas?… Thanks 🙂
EDIT: Using WP 3.2.1
In the following snippet, you’ll see all filters attached to the title, content & excerpt (from /wp-includes/default-filters.php). Try to remove in a first try only stuff like capital P dangit, smilies and such and if this doesn’t work, remove the more critical stuff. I’d only do this until the post saves and then move stuff out or wrap it into a
if ( is_single( $post->ID ) )
statement to not trigger it elsewhere.