Flex (v4.1) TLF (v.1.1) not showing embeded font

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
               xmlns:s="library://ns.adobe.com/flex/spark"
               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"
               preinitialize="preinitializeHandler(event)"
               initialize="initializeHandler(event)"
               creationComplete="creationCompleteHandler(event)">

    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/mx";

        @font-face {
            src:url("../assets/fonts/wedtxtn.ttf");
            fontFamily: "CSSFont";
            cff: true;
        }
    </fx:Style>


    <fx:Script>
        <![CDATA[
            import flash.text.engine.CFFHinting;
            import flash.text.engine.ElementFormat;
            import flash.text.engine.FontDescription;
            import flash.text.engine.FontLookup;
            import flash.text.engine.RenderingMode;
            import flash.text.engine.TextBlock;
            import flash.text.engine.TextElement;
            import flash.text.engine.TextLine;

            import flashx.textLayout.compose.ISWFContext;
            import flashx.textLayout.container.ContainerController;
            import flashx.textLayout.container.ScrollPolicy;
            import flashx.textLayout.container.TextContainerManager;
            import flashx.textLayout.conversion.TextConverter;
            import flashx.textLayout.elements.GlobalSettings;
            import flashx.textLayout.elements.ParagraphElement;
            import flashx.textLayout.elements.SpanElement;
            import flashx.textLayout.elements.TextFlow;
            import flashx.textLayout.formats.ITextLayoutFormat;

            import mx.controls.Text;
            import mx.events.FlexEvent;

            import spark.core.SpriteVisualElement;



            protected function preinitializeHandler(event:FlexEvent):void
            {
                GlobalSettings.fontMapperFunction = fontMapperFunction;
            }


            private function fontMapperFunction(fd:FontDescription):FontDescription
            {
                return fd;
            }



            protected function initializeHandler(event:FlexEvent):void
            {
                var fonts:Array = Font.enumerateFonts(false);

                trace("Embeded Fonts:");
                for each(var font:Font in fonts) {
                    trace(font.fontName+" ("+font.fontStyle+") "+font.fontType);
                }

            }


            protected function creationCompleteHandler(event:FlexEvent):void
            {

                var element:SpriteVisualElement = new SpriteVisualElement;
                    element.verticalCenter = 0;
                    element.horizontalCenter = 0;

                // Create Text using TLF
                var span:SpanElement = new SpanElement();
                    span.text = "Hello World!";
                    span.fontLookup = FontLookup.EMBEDDED_CFF;
                    span.renderingMode = RenderingMode.CFF;
                    span.fontFamily = "CSSFont";

                var p:ParagraphElement = new ParagraphElement();
                    p.addChild(span);

                var tf:TextFlow = new TextFlow();
                    tf.addChild(p);
                    tf.fontLookup = FontLookup.EMBEDDED_CFF;
                    tf.renderingMode = RenderingMode.CFF;
                    tf.fontFamily = "CSSFont";


                var textContent:Sprite = new Sprite;
                    textContent.y = -50;
                element.addChild(textContent);

                var textController:ContainerController = new ContainerController(textContent);
                    textController.verticalScrollPolicy = ScrollPolicy.OFF;
                    textController.horizontalScrollPolicy = ScrollPolicy.OFF;

                tf.flowComposer.addController(textController);
                tf.flowComposer.updateAllControllers();



                // Create text using FTE
                var fontDescription:FontDescription = new FontDescription("CSSFont");
                    fontDescription.fontLookup = FontLookup.EMBEDDED_CFF;
                    fontDescription.renderingMode = RenderingMode.CFF;

                var format:ElementFormat = new ElementFormat(fontDescription,25);

                var textElement:TextElement = new TextElement("Hello World", format);

                var textBlock:TextBlock = new TextBlock(textElement);

                var tl:TextLine = textBlock.createTextLine();
                    tl.y = 50;

                element.addChild(tl);

                addElement(element);
            }



        ]]>
    </fx:Script>

    <s:Label x="10" y="10" text="Font is working on components" fontFamily="CSSFont" fontSize="22" />
</s:Application>