Hi, out of the blue PayPal no longer works after weekend..
All orders get to Incompleteed or Open. Cart version 4.2.2
KB suggests for 4.2.X disable IPN, auto return. So I got them disabled.
Orders status from paypal is processed, in logs Status: Incompleted -> Processed. Stock gets -1 and later order becomes incomplete. In checkout I am taken not to landing page but to last checkout step
"Your order has been declined by the payment processor. Please review your information and contact store administration."