CustomPress admin columns not showing

When I first created my custom taxonomies for Posts, I checked the box that said "show admin column". This worked fine and I was able to show all my admin columns. At some point after that, all the columns disappeared. (the fields still show on the edit posts page). I've tried disabling and enabling the admin column again, and tried deactivating and reactivating the plugin. Any idea why the admin columns won't show?