My WordPress site has regular posts and a few other custom post types. Comments are working with no problems on the regular posts, but when it comes to commenting on a custom post type, all I'm getting is a blank screen (wp-comments-post.php) as soon as I click the 'Leave Comment' button.
I've tried turning on debugging in wp-config.php, but I'm getting no errors returned. I've also tried switching off Akismet, but doing so doesn't solve the problem.
Is commenting possible on custom post types? Anybody have any ideas?