Missing characters in CFF embedded fonts

Question

Our application loads embedded fonts on the fly. I'm in the process of converting our text handling to FTE and switching over to CFF fonts, but I've noticed that for a couple of fonts, there are characters that are damaged, or missing entirely. The same text renders correctly when the font is installed as a system font, and also when it's embedded in the non-CFF format, so CFF embedding is choking on something, but I have no idea what. Nor do I see a lot of knobs that I can twist to control the CFF output.
For example, Budmo Jiggler (http://www.dafont.com/budmo-jiggler.font). When embedded as CFF, the letter "B" isn't rendering correctly:
This occurs in both the 10.3 and 11.3 players.
My embedding code is autogenerated for all fonts and looks like this:
// GENERATED FILE - DO NOT EDIT
package {
     import flash.display.Sprite;
     import flash.text.Font;
     [SWF(width="800", height="600", backgroundColor="#FFFFFF", frameRate="30")]
     public class BUDMO extends Sprite {
          [Embed(source='/Users/bsharon/src/Bueller/as/fonts/ttf/Budmo Jiggle/BUDMO.ttf',
                 mimeType="application/x-font",
                 fontName='embedded_BUDMO',
                 unicodeRange='U+0000-U+00FF',
                 embedAsCFF='true',
                 fontWeight='normal',
                 fontStyle='normal')]
          public static var embedded_BUDMO:Class;
          [Embed(source='/Users/bsharon/src/Bueller/as/fonts/ttf/Budmo Jiggle/BUDMOB.ttf',
                 mimeType="application/x-font",
                 fontName='embedded_BUDMO',
                 unicodeRange='U+0000-U+00FF',
                 embedAsCFF='true',
                 fontWeight='bold',
                 fontStyle='normal')]
          public static var embedded_BUDMO_Bold:Class;
            trace("Registering font embedded_BUDMO");
            Font.registerFont(embedded_BUDMO);
            trace("Registering font embedded_BUDMO_Bold");
            Font.registerFont(embedded_BUDMO_Bold);
The code is compiled like so: mxmlc --static-link-runtime-shared-libraries -output <swf_file> <as3_file>. There are no warnings.
So...what do I try next?

Answer 1

I will close my own question by saying that if I convert the TTF files to OpenType, the problem goes away. I would have preferred not to bang my head on this particular wall, but at least I have a workaround now.