woocommerce checkout

Hi I hope it’s okay to write about a woocommerce troubleshoot in this forum so thanks in advance for any help,

I need to debug the woocommerce checkout page in which some fields of the form billing are not aligned correctly for some countries.
i saw that the issue is resolved if i add a <div class="clear"></div> after the postcode field, the function woocommerce_form_field( $key, $args, $value = null ) adds that div if $args[‘clear’] is not empty and it’s called in a foreach for the checkout page in the checkout/form-billing.php file.
woocommerce_form_field(…) is in woocommerce/includes/wc-template-functions.php.

The $args contains the clear attribute correctly and woocommerce_form_field returns the field with div correctly (mailed myself the data from the function), when i get to the page the div is not there and fields are not aligned. Also i noticed that if i try to echo something it doesn’t appear on the page source but if i mail the data from the same form-billing.php spot the data is received correctly.
How can i make the div show correctly ? What javascript could rewrite the form and where can i edit it ?
link:
https://buy.bepro-favero.com/checkout/
you need to have something in the cart, like Kit 4 alignment labels. the fields disaligns if you select United States in the country select.
Any suggestion would be appreciated

P.S.: i added some javascript that adds the div on document.onload but it feels dirty and i’m not sure it works in every case.