Live - Surround Panner

Dear all,

I downloaded the "Surround Panner" Pack from Ableton.
When creating a new session and inserting the device I don't get any meter and the send outputs of the device are not working.

If I open an included demo session - it works.
But if I save the demo session under a new and reopen it - then it also doesn't work.
I can't get it to work unless opening the demo session.

Is this a bug or do I overlook something?

Thanks !

Frank