Lines (Shapes) dont show up with 7.x-2.6

after upgrading from 7.x-1.1-beta2 to 7.x-2.6 the lines are not displyed anymore in the map.

I add them in this way:

    if ($this->dataarray[$i][0] == "trace") {
       $shapenum = count($this->map['shapes']);
       $this->map['shapes'][] = array (
        'type' => "line",
        'style' => array("0000ff", 3, 45),
        'points' => array(),
       );
      for ($j = 0; $j < count($this->dataarray[$i][1]); $j ++) {
        $this->map['shapes'][$shapenum]['points'][]=array($this->dataarray[$i][1][$j][1],$this->dataarray[$i][1][$j][0]);
      }
    }//trace