Originally Posted by zhhbc
I loaded an ebook (in epub) into Kobo using Calibre. The book contains multi-byte characters (U+0800 to U+FFFF). Kobo has a problem displaying the content, i.e. all characters show as "?". However, it can show table of content correctly. Is it a known issue?
I did run into this problem with a book loaded into my Kobo Original. In my case the problem was with the book, not the e-reader. Have you tried to read the book in a Desktop application such as the Kobo Desktop, Adobe ADE or Calibre. If the problem also shows up there, then, there is a problem with the book.