WORDPRESS WOOCOMERCE PROBLEM cannot list products

Hello, we have WORDPRESS and WOOCOMERCE latest versions and we have following problem something must be broken or misconfigured.: We're trying to update product stock amounts in a Wordpress CRONjob that runs every 10 minutes. It runs a function that is supposed to get the list of all products in Woocommerce which we then want to update, but the function isn't working. We're using the function wc_get_products() to get the list of products, but it returns an empty array even though we have 200+ products listed in our store. we need to fix that asap please only experienced WP admins