Android, backspace doesn't work in a flash.text.TextField

Hello,

I have a strange bug on my Nexus 5 Android 4.4 Air 3.9.

If the first caracter is "<", ">", "?",... in a flash.text.TextField, when I select the textField (a long press -> the cursor appear at the first position), the backspace doesn't work.

package{
          import flash.text.TextField;
  
          import flash.display.Sprite;
          import flash.events.Event;
          import flash.display.StageAlign;
        import flash.display.StageScaleMode;
  
          public class Main extends Sprite{
  
                    private var myTextField:TextField = new TextField();
                    public function Main(){
                              stage.scaleMode = StageScaleMode.NO_SCALE;
            stage.align = StageAlign.TOP_LEFT;
                              addEventListener(Event.ADDED_TO_STAGE, init);
                    }
                    public function init(event:Event):void{
                              myTextField.type="input";
                              myTextField.border=true;
                              myTextField.width=myTextField.height=300;
                              addChild(myTextField);
                    }
          }
}

Thanks.