AS3, .htmltext, .embedFont and/or .antiAliasType makes b disappear

Question

I've been trying to find a solution for this problem for a while and I still can't get a working solution. I've googled the problem and it looks like it's a known issue yet I still can't get a definitive fix that actually works.
I create a dynamic text field that's populated with html text from an .xml file.  It looks like .embedFont and/or .antiAliasType makes the html <b> formatting disappear. I HAVE to have the bold text per client needs.
Here's my code that was written based on posts I've seen online by other people with the same issue.
"fontHelvetica" is a font that is in the .fla's library and it is the linkage name. 
Every format works except the html <b>.
How do I make the <b> work?
Is there a definitive solution or a link to a site that has a working solution?
import flash.text.TextField;
import flash.text.TextFormat;
import flash.text.TextFieldAutoSize;
import flash.text.Font;
var fontIntroDisclaim:Font = new fontHelvetica();
var introDsclmFrmt:TextFormat = new TextFormat();
    introDsclmFrmt.font = fontIntroDisclaim.fontName;
    introDsclmFrmt.color = 0xFFFFFF;
    introDsclmFrmt.size = 16;
    introDsclmFrmt.letterSpacing = .1;
    introDsclmFrmt.leading = 01;
var introDsclmTxt:TextField = new TextField();
    introDsclmTxt.width = 1150;
    introDsclmTxt.x = introDsclmTxt.y = 0;
    introDsclmTxt.multiline = true;
    introDsclmTxt.selectable = false;
    introDsclmTxt.wordWrap = true;
    introDsclmTxt.defaultTextFormat = introDsclmFrmt;
    introDsclmTxt.autoSize = TextFieldAutoSize.LEFT;
    introDsclmTxt.antiAliasType = AntiAliasType.ADVANCED;
    introDsclmTxt.embedFonts = true;
introDsclmTxt.htmlText = ifxLandingDisclaimer;
introDsclmTxt.setTextFormat(introDsclmFrmt);
intro1_mc.introDisclaim_mc.addChild(introDsclmTxt);
Thanks in advance for your response.
Zak.

Answer 1

Thanks for the response Kglad. You suggestion helped me to fix the issue.