I'm running WP 3.6 and WooCommerce 2.0.13, everything is up to date here.
The thing is order email notifications are not being triggered when the payment gatway API sends the return and changes the order status to processing.
However, if I change status to processing manually, everything works fine, which means email functions are ok.
Payment gateway is set all right and return works fine too.
Sender's email address has the same domain and is valid. There's nothing more I can think of to solve it. Can anybody help please?
Thanks in advance.