Unable to decode data coming from WebSphere MQ Adapter

My Integration Server is receiving data from WebSphere MQ System. I use the GET/PEEK to pull the data from the queue. The problem is, when I try to decode this data, the output flat structure is empty. I use the following decode flow:
Also I have strange problem in saving the pipe and restore it with the data coming from MQ system.
Has any one experienced this problem before?
Bye for now,
Sathya KM