In reply to zgluzer:
just to make it clear, my flow is as following:
driver get the requst.
rsp get the req_act_id.
driver generate response with the same xact_id.
the sequence response handler only print the above warning and does not enter the handler. i realized it after adding a display for the handler first line.
so my problem is that the sequence is probebly exited before its handler is being called.
any suggestion?