BuddyPress.org

Ok, I eventually found a workaround.

The below code will update firstname and lastname fields in the BP member profile upon user registration :

add_action('user_register', 'my_user_register');

function my_user_register($user_id)

{

if ( function_exists( 'xprofile_set_field_data' ) ) {

$firstname = get_usermeta( $user_id, 'first_name' );

$lastname = get_usermeta( $user_id, 'last_name' );

xprofile_set_field_data( 'firstname', $user_id, $firstname );

xprofile_set_field_data( 'lastname', $user_id, $lastname );

}

}