thurgove216 years ago+330Is it normal that the knob is so wobbly?Show in original language (German)Anonymous3 years ago • purchased this product000purchased this productThe rotary knob is also wobbly on mine. Has anyone had any experience of whether this is a warranty case?Show in original language (German)CommentAnonymous5 years ago000Mine too, unfortunately, will probably be a warranty case.Show in original language (German)CommentCharly84006 years ago • purchased this product000purchased this productNo, they seem stable and of good quality to me.Show in original language (German)Comment