Custom field values not exporting

Your plugin has been working wonderfully, but recently my custom fields have not been properly exporting.

The field name is exported in the CSV, but the value is empty. I added the custom fields to the dropdown using PHP, and it was working previously, but I no longer see them in the dropdown. However, they still appear in the checked list of fields to export.

The custom fields I am trying to export are located within the user profile, and are labeled as TaxType and BrandingTheme.

This is the code I used to create the fields in the dropdown:

add_filter('woe_get_order_fields_user', 'add_user_fields');
function add_user_fields($fields) {
	$fields['brandingtheme'] = array('segment'=>'user','label'=>'BrandingTheme','colname'=>'BrandingTheme','value'=>'','checked'=>1);
	$fields['taxtype'] = array('segment'=>'user','label'=>'TaxType','colname'=>'TaxType','value'=>'','checked'=>1);
	return $fields;
}

add_filter('woe_get_order_csv_value_brandingtheme', 'get_user_custom_field', 10, 2 );
function get_user_custom_field($value,$order) {
	$user_id = $order->get_user_id();
	return get_user_meta($user_id, 'brandingtheme', true);
}

add_filter('woe_get_order_csv_value_taxtype', 'get_user_custom_field2', 10, 2 );
function get_user_custom_field2($value,$order) {
	$user_id = $order->get_user_id();
	return get_user_meta($user_id, 'taxtype', true);
}

Any ideas or insights as to why it no longer works would be greatly appreciated. Thank you!

https://ww.wp.xz.cn/plugins/woo-order-export-lite/