Reply to Fader Fx on the VCI

I'm having trouble using fader fx on my vci. I'm using traktor 1.1.2 (along with eans midi map), with a silver vci (firmware 1.2 unfortunately). Putting my vci into fader fx mode gives me fx control with the jog, and the pitch fader, but the line fader seems to do absolutely nothing.

Any idea what the problem could be, or how I can go about fixing it? Any help would be really appreciated, cause I'd love to try out the new aerodynamic juggle routine.