The very annoying ‘Missing Schedule’ Wordpress issue is not a Wordpress-issue, it’s a server-side configuration problem. I learned this from some trial test in collaboration with my hosting provider.
Update: Solution found, as described here. I’ve had issues with WordPress’ scheduler for post since it arrised and am still searching for solution for some of my sites. The problem is known since WordPress Version 2.7, where handling of scheduled post was implemented differently. Interestingly, it seems that not all suggested fixes are working in