I have auto return to page set in my settings. It works on the desktop but today, we were notified that it gets hung up on the mobile and does not return to the merchant page.  Return to merchant button does not work.  Refreshing the page results in taking the customer to the cancel page rather than the success page, however, the payment has gone through, and the customer was charged.  These is serious... what is going on and how can we fix it?