I have a current Drupal and CiviCRM installation running LoginToboggan, Panopoly and Multiple Register.
I can toggle the original Name & Address Profile included with the installation, but when I set the checkbox for Drupal User Registration to true on the custom Profile Settings page, the form doesn't appear on the Drupal User registration form.
user/register
Additional registration forms built with Multiple Registration
register/supporter
register/volunteer
Clearing cache and running has no effect.
What's the best way to debug this problem?