I've created a simple Canvas file using a Typekit font with dynamic text. In the publish settings I link it to my URL.
Sometimes when I reopen the file, it opens just fine. But, sometimes when I reopen it, I get a warning screen called "Font Mapping" saying that the document contains fonts that are not available on my system and that the text will display and publish with the font mapped to a system default font which changes the whole look of the font I originally selected.
Why am I getting this font warning all of a sudden and how do I remedy it?