Images and fonts do not appear on Apple Books

[AlfredLarsen]

Hello,

ePubs generated by this script work wonderfully on iBooks for Mac OS and other e-readers, but...

...the same ePub viewed through Apple's new Books app for iOS does not display the images, instead a placeholder is shown:

The above is from the Alice in Wonderland ePub generated by epub-gen’s own test.js script. I've found the same issue with my own ePubs. The images display fine in iBooks on Mac OS, and other e-readers, but on Apple's Books app for iOS - only a placeholder is shown.

Also, any custom fonts you specify do not work. Again, they work perfectly elsewhere.

I've ran the script to generate an ePub version 2 and 3 - and both have the same issue. My iPhone is fully updated.

Any ideas?

[AlfredLarsen]

P.S. I notice that ePubs generated with other software work fine in Apple Books. For example, I generated an .epub file with both inline images and custom fonts in Apple Pages, and it works fine in Apple Books for iOS.

I've unzipped this working epub and am looking at the contents, trying to see what the difference is, but so far I can't spot the difference. I cannot see anything that could be causing it to fail. I've even consulted Apple's official documentation at https://help.apple.com/itc/booksassetguide/en.lproj/static.html, and I can't see anything that epub-gen is doing wrong.

[AlfredLarsen]

Okay, I've got hold of someone else's iPhone and it works fine on theirs. Clearly there's some issue with my device.

[AlfredLarsen]

I've changed the book title by a single character and the problem is no longer happening on the Alice test book.

As for my own books, I had to delete the Apple Books app and reinstall it. Now everything works correctly.

Well that was a fun 4 hours.

Ugh.