Originally Posted by aterry13
Message deleted - I meant to start a new thread
You asked this over on Calibre
without failing code samples (and the CSS) you need to work backwards from the Paragraph (styles, and everyone used within; ) until you find what is killing your font use.
The big question(s) does the CSS validate 100% at W3C and does your EPUB validate. (You can have 100% valid nonsense code, so check your logic. BTDT