[FickleHare]

Originally Posted by pazos

These are SVG images with text on them. They're not currently supported. See ticket https://github.com/koreader/koreader/issues/6757.

You would need to convert these to png or use a different program to read that book.

Oh. Converted the book to MOBI then back to ePUB. The images are jpeg now and work as expected (x4 file size and ugly font formatting though.) Thanks for the tip(s).