TextArea and TextInput on mobile device the text disappears and works fine on desktop

Question

I'm developing a mobile app with a view that contains 1 Text Area, 1 Text Input and a group of 3 buttons. The app runs well in Desktop mode ( Run & Debug ), but when run in an android device ( Sony Tablet S) when the view is loaded,  the text (text property set at design or runtime)  "flashes" and disappear, if I change the device orientation of the tablet (phisically) the text draws correctly and don't disappear, even if you return to the original orientation. Also, if I pop-up a message (SkinnablePopUpContainer) in the same view, the text appears, and when I close the pop-up the text disappears again.
Is this an identified bug ? ... is there a workaround ? ... I tried to set visible property to false and true and sometimes it works and sometimes not at random.
Thank you for you help.

Answer 1

UPDATE : if I set Focus=true the text appears. I think that the text should be there even if I don't set focus.
This simple code when run in the device (Sony Tablet S) doesn't work as expected ... ( the text in the textbox dissapears, and if you change orientation appeears).
<?xml version="1.0" encoding="utf-8"?>
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009"
                    xmlns:s="library://ns.adobe.com/flex/spark" title="Editar acción"
                    xmlns:dao="dao.*" creationComplete="view1_creationCompleteHandler(event)" >
  <fx:Script>
                    <![CDATA[
                              import mx.events.FlexEvent;
                              protected function view1_creationCompleteHandler(event:FlexEvent):void
                                        txt1.text="Hola";
                                        txt1.validateNow();
                                        txt1.setFocus(); // <---- if not set the text "Hola" flashes and dissapear.
                    ]]>
  </fx:Script>
          <s:TextInput id="txt1" x="26" y="44"/>
</s:View>