One of my sites consistently fails to publish scheduled posts. I've tried disabling plugins, using Twenty Twelve, etc. with no luck.
I installed the Core Control plugin and noticed that there is no function associated with the publish_future_post hook. On my other sites, there is a hooked function check_and_publish_future_post() but it's missing on this particular site.
My questions are (1) how the heck did this happen and (2) how do I fix it? I've tried a clean install of Wordpress (other than wp-content) with no change. I've reached the limit of what I'm comfortable doing without some guidance, so I'm hoping someone here can help.