1.3.9e
Payments enabled: paypal express
Order Total enabled: ot_shipping, ot_subtotal, ot_total

Response:
Array
(
[TIMESTAMP] => 2010-08-03T23:04:33Z
[CORRELATIONID] => 7b488010d7634
[ACK] => FailureWithWarning
[VERSION] => 60.0
[BUILD] => 1421734
[L_ERRORCODE0] => 10413
[L_ERRORCODE1] => 10417
[L_SHORTMESSAGE0] => Transaction refused because of an invalid argument. See additional error messages for details.
[L_SHORTMESSAGE1] => Transaction cannot complete.
[L_LONGMESSAGE0] => The totals of the cart item amounts do not match order amounts.
[L_LONGMESSAGE1] => The transaction cannot complete successfully. Instruct the customer to use an alternative payment method.
[L_SEVERITYCODE0] => Warning
[L_SEVERITYCODE1] => Error
[CURL_ERRORS] =>
)


DoExpressCheckoutPayment, Elapsed: 3053ms -- FailureWithWarning