Using AVID Controller with Nuendo

I’d like to use my AVID S6 controller with Nuendo 8.

With Pro Tools and Logic it works instantly.

In Nuendo I added an EuCon-Controller in the studio settings but S6 and Nuendo do not communicate.

I read that there is a Steinberg EuCon license I can buy. Do I need that to get this working?

How can I get my controller to work with the S6?

Apparently the license is free and you can get it from your mysteinberg login.