StageWebView x offset problem

I'm using StageWebView to load SWF files or HTML pages with SWF content on my Adobe Air 3.8 app for Android and I have a problem when I set the X offset in the viewport. The SWF gets cut off on the right side.

See this screenshot:

Image may be NSFW.
Clik here to view.

The viewport covers the area enclosed in the  rectangle with a grey border but a portion of the rhino gets cut off. If I set the X offset to 0, the webview instance shows the SWF properly but the higher the X offset the wider the portion that gets cut off.

I need to add this happens only on Android running ICS (4.0.4). On devices running Jelly Bean, such problem does not happen.

One more thing: the black "patch" that covers the rhino part is the background color of the swf. I tested this problem with different SWFs and the strip that shows up on the right side is always of the same color as the remote SWF's background.

I need to show SWF content centered on the stage and this offset bug is a killer.

Does anybody know of a fix for a problem like this?

My code:

function loadFlashWebView():void {

    //load Flash webview for testing plugin

    webView = new StageWebView();

    webView.stage = this.stage;

    webView.loadURL(flashTestURL);

    webView.addEventListener(Event.COMPLETE, onLoadFlashViewComplete);

}

function onLoadFlashViewComplete(evt:Event):void {

    //load view complete handler

    trace("Web view finished loading. Error: " + webview_error);

    webView.viewPort = new Rectangle(67, 80, stage.stageWidth, stage.stageHeight); //the swf gets cut off in ICS

}

var flashTestURL:String = "http://mywebsite.com";

var webView:StageWebView;