In creating my fixed layout EPUB portfolio, I'm using free fonts that do not require licensing. I THINK that I've embedded the two fonts that I'm using properly in INDESIGN, but I'm a beginner and probably missing something. When I preview the EPUB in Folio Overlays, everything looks just like the INDESIGN file -- the fonts are correct and all the links and buttons work fine. There are no errors indicated on the working file, either. But when I export to the fixed layout EPUB, the fonts have been replaced by a default font. Everything in the INDESIGN file seems to be working, but fonts are not exporting. NOW, the odd thing is, when I export the same exact file to a reflowable EPUB, the layout is all over the place BUT THE FONTS LOOK FINE. They seem to be embedding the reflowable EPUB properly. Why is the fixed layout EPUB not exporting the fonts?