Banner order doesn't seem to work

Hi!

Great plugin! It provides al the functionality I need. I only do have some trouble to get the order of the banners to work.

I gave each of them a number but still the banners seem to appear in random order on my site.

I used this shortcode in my page template:

<?php
if ( function_exists( 'useful_banner_manager_banners' ) ) {
useful_banner_manager_banners();
}
?>

What am I doing wrong?

https://www.ads-software.com/extend/plugins/useful-banner-manager/