Index: includes/admin/users.php
===================================================================
--- includes/admin/users.php	(revision 5064)
+++ includes/admin/users.php	(working copy)
@@ -47,7 +47,8 @@
 			return;
 
 		// User profile edit/display actions
-		add_action( 'edit_user_profile', array( $this, 'secondary_role_display' ) );
+		add_action( 'edit_user_profile',    array( $this, 'secondary_role_display' ) );
+		add_action( 'user_new_form_after',  array( $this, 'secondary_role_display' ) );
 
 		// WordPress user screen
 		add_action( 'restrict_manage_users',      array( $this, 'user_role_bulk_dropdown' )        );
@@ -66,10 +67,10 @@
 	 * @param WP_User $profileuser User data
 	 * @return bool Always false
 	 */
-	public static function secondary_role_display( $profileuser ) {
+	public static function secondary_role_display( $profileuser = null ) {
 
 		// Bail if current user cannot edit users
-		if ( ! current_user_can( 'edit_user', $profileuser->ID ) )
+		if ( ! empty( $profileuser ) && ! current_user_can( 'edit_user', $profileuser->ID ) )
 			return;
 
 		// Get the roles
@@ -87,7 +88,7 @@
 					<th><label for="bbp-forums-role"><?php esc_html_e( 'Forum Role', 'bbpress' ); ?></label></th>
 					<td>
 
-						<?php $user_role = bbp_get_user_role( $profileuser->ID ); ?>
+						<?php $user_role = ! empty( $profileuser ) ? bbp_get_user_role( $profileuser->ID ) : null; ?>
 
 						<select name="bbp-forums-role" id="bbp-forums-role">
 
Index: includes/core/actions.php
===================================================================
--- includes/core/actions.php	(revision 5064)
+++ includes/core/actions.php	(working copy)
@@ -51,6 +51,7 @@
 add_action( 'template_redirect',        'bbp_template_redirect',        8     ); // Before BuddyPress's 10 [BB2225]
 add_action( 'login_form_login',         'bbp_login_form_login',         10    );
 add_action( 'profile_update',           'bbp_profile_update',           10, 2 ); // user_id and old_user_data
+add_action( 'user_register',            'bbp_profile_update',           10, 1 ); // user_id
 add_action( 'user_register',            'bbp_user_register',            10    );
 
 /**