Originally Posted by kovidgoyal
I changed the fb2 metadata update code to generate double quotes for the XML declaration. But I really doubt that will be the end of the issue, since if the reder chokes on single quotes it's going to choke on lots of other things as well. If I were you, I'd just convert to epub.
Thank you! Should we download Calibre 9.3 again?
I gave the e-book to my mum, it was a present for her. I'll try new as soon as I get back the book and will write.