Cloudfx published messages gives serialization error when read from deadletter

I am using cloudx frameworks publisher subscriber mechanism for processing messages through azure topic/subscription.

Some of the expired messages are moved to DeadletterQueue. When i try to read those deadletter messages using MessageReceiver, i get serialization error.

    var msgReceiver = msgFactory.CreateMessageReceiver(deadletterPath);
    BrokeredMessage msg = msgReceiver.Peek();
    UserExitMessage deadLetterObject = msg.GetBody<UserExitMessage>();   

It seems cloudfx frameworks modify ( or encode ) the messages and hence they are not able to deserialize properly. Does anybody knows mechanism to read deadletters using cloudfx.

Any help would be appreciated as i am stuck from quite some time.

P.S. - This issue occurs only with messages there are published using cloudfx, for deadletter messages that were send using TopicClient code works fine.