Hello, 

All of a sudden, the orders are getting cancelled after a successful PayPal sandbox payment. The status says "Payment Successful," but when I hit "Return to Merchant" (and it is NOT getting back to the merchant automatically albeit the correct settings in the Website Preferences section), that button URL says status "order_cancelled," and it didn't go the WooCommerce order success page. I have all the ICN, Website Preferences settings enabled along with the PayPal identity token in the WooCommerce plugin.