Air Application crashed in Mac os x with multi monitor

I use macbook pro and my system is OS X 10.10.3. And I have a external monitor. My SDK version is 18.0.

Use the following code:

  private var nativeWindow:NativeWindow;

  public function DemoProject()

  {

       nativeWindow = new NativeWindow(new NativeWindowInitOptions());

      nativeWindow.activate();

       setTimeout(activeLater,2000);

  }

  private function activeLater():void

  {

       nativeWindow.close();

  }

When starting the project the windows appeared in my macbook's monitor. After the  'nativeWindow' closed, I close my macbook's lid. And then the Air application crashed when it adjusting it's position to the external monitor.

I guess there is some list keep the nativeWindow in air. And it doesn't remove the closed window.

This problem is really serious. 

Bug: Bug#4015785 - Air Application crashed in Mac os x with multi monitor

Thx