There is a Bug in Android 4.4 KitKat when using embedded fonts, it does not display the TTF version of the file. The simple fix is to simply use the OTF version of the font.
You can use the site below to convert a TTF font to a OTF Font or you can use a font tool like Font Lab
http://onlinefontconverter.com/
Follow my guide below to learn how to embed a font on Appcelerator Titanium Alloy
How to: Appcelerator Titanium Alloy Embed Font – Android and iOS
Bug: Embed font TTF not displaying Android 4.4 Kitkat , 4.3 JellyBean – FIXED use OTF