Are italic tags broken in Flash CC? Bug?

Question

I noticed that my <i> italic tags stopped working when I switched from CS6 to CC. If I create a fresh FLA, add a dynamic TextField, embed both Arial Regular and Arial Italic, then do this:
two.htmlText = "These are BR tags: <br/><br /><i>this is in an italic tag</i> and this is not.";
I will see the BR line breaks, but the italic tag has no effect.
I tried using <FONT FACE="Arial Italic"> instead of the <i> tag, and that works. I had no luck using CSS. I'm not sure if I'm just having a brain fart, or the specs have changed, or if this is a real bug. Can someone tell me what's going on? Here's my test:
https://dl.dropboxusercontent.com/u/11786661/ItalicsTest.zip

Answer 1

Verifying I get the same results. I embedded Comic Sans MS and the only way I could get it to render was removing embed fonts (embedFont = false). However internally it was working as expected, albeit a tad less smooth.
Simple way to verify, open a new document and embed any font in the library, then export for ActionScript and name the class "CSMS" (for this example to work).
Paste in frame 1:
import flash.text.TextFormat;
import flash.text.TextField;
import flash.text.Font;
import flash.text.AntiAliasType;
// I embedded comic sans ms, exported for actionscript as "CSMS"
var f:Font = new CSMS();
var tf:TextFormat = new TextFormat(f.fontName,30,0x0);
var tx:TextField = new TextField();
addChild(tx);
tx.x = tx.y = 20;
tx.width = 300;
tx.height = 300;
tx.wordWrap = true;
tx.antiAliasType = AntiAliasType.ADVANCED;
tx.defaultTextFormat = tf;
tx.htmlText = "This is Regular. <i>This is italic</i>. <b>This is Bold</b>.";
Despite there being no italic version to embed, and I didn't even embed bold, they still work. You can verify it by changing the font embedded to any other font and you should see your rendered text properly.
Example of Comic Sans MS:
Tahoma:
Times New Roman:
The second I check to embed or programmatically set it the text disobeys. The fact that the font is changing when I set the same embedded font to different families with is programmatically applied says some level of the embedding is working, even if it's simply mappying to your OS's fonts.