Automap doesn't control Halion Sonic SE3

Hello.

I started using a novation impulse as a midi controller with the help of automap 4.0. Everything goes well with the mixer, Prologue and third-party plugins, but everything goes wrong with Halion Sonic SE3 and Groove Agent SE. For some reason, Automap cannot control either of them on Cubase. The curious thing is that on Live I don’t get that problem … but on Cubase I just can’t manage to control them. Any ideas to fix this?

Thanks.