Client Proxy - Response Message does not populate table type element

Hi,

I came cross the situation:

Sync Client ABAP Proxy --->PI -

> Web Service Provider

In our response structure, there are some single value (0:1) and table value (0:unbound).

While testing proxy, we can see response message has one value for table type element, however, input structure table is not populated with the value.

Any advice or idea ?

Thanks

Liang