Hi there, I've been trying to figure this out by myself, thought I had it but nay.
The issue first arose with Linux Libertine (
http://libertine-fonts.org/download/ ), in the Calibre viewer all text set in Linux Libertine was slanted (all passages, with no overrides, regardeless wether they were set to font-style normal or italic... on top of that they were oblique or slanted). When the same EPUB was opened in ADE the result was terrible (i's were missing their dots, and j's were missing entirely).
The Epub in question was created through Indesign CC.
I then used an OTF version and everything was solved.
Now I used Baskervald (
http://arkandis.tuxfamily.org/adffonts.html ) for another project. Had the exact same problem, but it already is an OTF, so... żany ideas?
On the up side, when opened in ADE the Epub shows as it should.
Thanks in advance.