Hello, Cristian Rodriguez,
We added the next custom snippet to your child-theme/functions.php because the WooCommerce plugin in the latest update made input hidden if it is available for 1 purchase only https://prnt.sc/Qlx7JEQf-wEa
add_filter('woocommerce_quantity_input_type', function($type) {
return 'number';
});
Kind Regards,
8theme team