Moodle 2.2.4+ (Build: 20120712)
On the following page /enrol/manual/manage.php?enrolid=###&id=### i'm trying to to enrol some users within a course. When I click the dropdown the entries for Teacher and Non-Editing Teacher are blank. When I look at the source their ids for the options are correct but the name doesn't display. If I click the blank spot for Teacher and enrol the user the enrollment works fine but it's just not displaying the name. Also on the "Enrolled Users" page the assignments for Teacher and Non-Editing Teacher aren't displaying and when trying to add a role on that page as well.
This only happens in one course as far as I've seen. I've turned on debugging but get no errors or messages.