I'm using a custom theme, with numerous custom post types. Everything seems to work flawlessly, until I attempt to publish a new post. I have an custom post type archive page that displays all the posts of type 'project.' When I create a new project page, and publish it, the archive page breaks. Instead of displaying the header followed by the list of projects, it only displays the header. The wordpress 'control bar' that allows one to access the backend from whatever page you're on, is also missing. Moving that new post to the trash, and reloading the archive page, restores it to working order.
There must be some silly mistake I am making...
Any help or suggestions would be greatly appreciated!