Setting LP volume using an external midi controller

Hi,

I have a LP Tribute edition with firmware release “1.03Tc 443”. I am trying to control the LP via an external midi controller keyboard. One thing I cannot get to work is midi volume control. I am sure the midi controller I am using is sending the volume control messages since other synths I have work fine. Is volume control via midi not supported on this early version of the LP?

Thanks
Steve