Mirrorlink with Samsung S7 edge and Seat Full Link

Hello,

I bought an S7 edge.

When pairing via USB (Seat Leon FR) with "Full Link" I have the following problem.

It will be displayed after the pairing (Mirror Link) only the compatible apps that work, but not the 1: 1 smartphone screen.

When I close all apps I see briefly (about 1 / 4sec) the mirrored display in the background. But do not come ...

Even if I press the right back button on the display hidden sms tracker, I always see very briefly the 1: 1 screen in the sms tracker background is available. Twice I've been through hundreds of times press the back button already succeeded in the 1: 1 screen in the foreground, then I could also z.b. Open "Navigon".

Does anyone have a hint, what am I doing wrong?