WordPress Registration Disabled, but New Registration Still Not Managed by Membership??

Hello. I have installed WP with Buddypress and implemented a child theme for the default BuddyPress theme. Everything is going great EXCEPT, I cannot seem to get Membership to take over management of new registration/members. All attempts to signup new members using the created page with the registration form short code result in a new WP User being added to the Users area and not in the Membership Members area. Oh, and the "Anyone can register" is unchecked. I'm sure it is something I'm missing, but for the life of me I can't figure it out. Thank you in advance for your assistance.