Removing the following lines from bp-disable-activation-loader.php will fix all issues. Furthermore, you probably didn’t notice that a new user registration also appeares twice in the Activitystream.
//Add note on Activity Streamif ( function_exists( 'bp_activity_add' ) ) {$userlink = bp_core_get_userlink( $user_id );bp_activity_add( array('user_id' => $user_id,'action' => apply_filters( 'bp_core_activity_registered_member', sprintf( __( '%s became a registered member', 'buddypress' ), $userlink ), $user_id ),'component' => 'profile','type' => 'new_member') );}//Send email to adminwp_new_user_notification( $user_id );
