Checkout fields order

Hello,
I’m trying to modify & re-order the checkout fields using 3 hooks (all with priority 1):

woocommerce_checkout_fields
woocommerce_billing_fields
woocommerce_default_address_fields

After all the modifications the $fields in each hook look like this: https://pastebin.com/QPW4wqiJ

The fields in checkout look like this: https://ibb.co/1MPNGVz

This is the code I’ve used:

/*
 * Checkout Fields
 */
function schechter_woocommerce_checkout_fields( $fields ) {
	unset( $fields['billing']['billing_company'] );
	
	// Priority
	$fields['billing']['billing_first_name']['priority'] = 10;
	$fields['billing']['billing_last_name']['priority']  = 20;
	$fields['billing']['billing_phone']['priority']      = 30;
	$fields['billing']['billing_email']['priority']      = 40;
	$fields['billing']['billing_address_1']['priority']  = 50;
	$fields['billing']['billing_address_2']['priority']  = 60;
	$fields['billing']['billing_city']['priority']       = 70;
	$fields['billing']['billing_country']['priority']    = 80;
	$fields['billing']['billing_postcode']['priority']   = 90;
	
	// Placeholders
	$fields['billing']['billing_country']['placeholder']   = '';
	$fields['billing']['billing_address_1']['placeholder'] = '';
	$fields['billing']['billing_address_2']['placeholder'] = '';
	$fields['order']['order_comments']['placeholder']      = '';
	
	/*
	 * Tab Index
	 */
	$fields['billing']['billing_first_name']['custom_attributes'] = array(
		'tabindex' => 1,
	);
	$fields['billing']['billing_last_name']['custom_attributes']  = array(
		'tabindex' => 2,
	);
	$fields['billing']['billing_country']['custom_attributes']    = array(
		'tabindex' => 3,
	);
	$fields['billing']['billing_city']['custom_attributes']       = array(
		'tabindex' => 4,
	);
	$fields['billing']['billing_state']['custom_attributes']      = array(
		'tabindex' => 5,
	);
	$fields['billing']['billing_address_1']['custom_attributes']  = array(
		'tabindex' => 6,
	);
	$fields['billing']['billing_address_2']['custom_attributes']  = array(
		'tabindex' => 7,
	);
	$fields['billing']['billing_postcode']['custom_attributes']   = array(
		'tabindex' => 8,
	);
	$fields['billing']['billing_phone']['custom_attributes']      = array(
		'tabindex' => 9,
	);
	$fields['billing']['billing_email']['custom_attributes']      = array(
		'tabindex' => 10,
	);
	$fields['order']['order_comments']['custom_attributes']       = array(
		'tabindex' => 11,
		'rows'     => 1,
	);
	
	return $fields;
}
add_filter( 'woocommerce_checkout_fields', 'schechter_woocommerce_checkout_fields', 1 );

/*
 * Customize billing fields
 */
function schechter_woocommerce_billing_fields( $billing_fields ) {
	unset( $billing_fields['billing_company'] );
	
	// Set labels and placeholders
	$billing_fields['billing_address_2']['label']       = 'Apartment, suite, unit, etc. (optional)';
	$billing_fields['billing_address_2']['placeholder'] = '';
	$billing_fields['billing_address_2']['label_class'] = array();
	
	// Set the order of the fields
	$fields_order = array(
		'first_name',
		'last_name',
		'country',
		'state',
		'city',
		'address_1',
		'address_2',
		'postcode',
		'phone',
		'email',
	);
	
	$count    = 1;
	$priority = 10;
	
	foreach( $fields_order as $field ) {
		if( isset( $billing_fields[ 'billing_' . $field ] ) ) {
			$billing_fields[ 'billing_' . $field ]['priority'] = $count * $priority;
			$ordered_fields[ 'billing_' . $field ]             = $billing_fields[ 'billing_' . $field ];
		}
		
		$count++;
	}
	
	return $ordered_fields;
}
add_filter( 'woocommerce_billing_fields', 'schechter_woocommerce_billing_fields', 1 );

/*
 * Customize default address fields
 */
function schechter_woocommerce_default_address_fields( $address_fields ) {
	unset( $address_fields['company'] );
	
	// Set labels and placeholders
	$address_fields['address_2']['label']       = 'Apartment, suite, unit, etc. (optional)';
	$address_fields['address_2']['placeholder'] = '';
	$address_fields['address_2']['label_class'] = array();
	
	// Set the order of the fields
	$fields_order = array(
		'first_name',
		'last_name',
		'country',
		'state',
		'city',
		'address_1',
		'address_2',
		'postcode',
		'phone',
		'email',
	);
	
	$count    = 1;
	$priority = 10;
	
	foreach( $fields_order as $field ) {
		if( isset( $address_fields[ $field ] ) ) {
			$address_fields[ $field ]['priority'] = $count * $priority;
			$ordered_fields[ $field ]             = $address_fields[ $field ];
		}
		
		$count++;
	}
	
	return $ordered_fields;
}
add_filter( 'woocommerce_default_address_fields', 'schechter_woocommerce_default_address_fields', 1 );

The order modification is not working, why is that?

Thanks