This seems to work just fine now, except that today, two customers were presented with an error by PayPal.
Unable to process payment. Shipping address provided by the merchant is invalid
My client replicated this error using his own, actual address. I was unable to replicate it, even with an invalid address. In testing, if I used a Canadian Postal Code with a US address, I would get this error. That would be the expected behaviour, but now I can pass an invalid address with no error.
Has anyone else experienced this?