I've applied the latest security patches from the Magento website and after that, I have strange behaviour:
After an order is done with online payment (card) is redirecting to checkout/cart via public function successAction() from app\code\core\Mage\Checkout\controllers\OnepageController.php
This means that after the page is redirected to the payment website and then is back to our website, is loosing somehow session.
$session->getLastSuccessQuoteId() is returning NULL and because of that is doing this.
I've even check
$lastQuoteId = $session->getLastQuoteId();
$lastOrderId = $session->getLastOrderId();
$lastRecurringProfiles = $session->getLastRecurringProfileIds();
and those are null also. I've also looked to the DB and the quote is there and everything seems to be ok.
Can someone help me with this?