I can not exclude that the controller was broken during production, or at least came this defect with me and I strongly suspect that it was because of the packaging! The controller was so poorly packed, which can quickly occur with improper storage / delivery a defect. The packaging film covered only "half" of the controller, so that the control buttons were not protected.
However, Amazon is very customer-friendly, so they have withdrawn the Controller without hesitation and I could immediately order a new (in original packaging) to me. This was also properly.