[TIMOB-12797] BlackBerry : Layout is broken with the latest build as on 19th Feb'13 (3.1.0.v20130219190219)

This is a regression.It works fine with build : 3.1.0.v20130215185802 Description: 1.Run the code below on BB simulator/device

var window = Titanium.UI.createWindow({
	backgroundColor:'#7a24db'
});

var button = Titanium.UI.createButton({
   title: 'www.youtube.com',
   top: 10,
   width: 200,
   height: 50,
   left:60
});

window.add(button);
window.open();

2.Observe the output Actual Results: 1.You do not see any thing on the screen Expected result: 1. You should see the controls in the code