I ran
ePubCheck on a sample and the error I got is below. Can you give some guidance on how to fix the toc.ncx?
Code:
ERROR: /Users/noir/Calibre Library/Robertson, Rachael/Leading on the Edge_ Extraordinary Stories and Leadership Insights from The World's Most Extrem (788)/Leading on the Edge_ Extraordinary Stories - Robertson, Rachael.epub/toc.ncx(26,72): assertion failed: different playOrder values for navPoint/navTarget/pageTarget that refer to same target
ERROR: /Users/noir/Calibre Library/Robertson, Rachael/Leading on the Edge_ Extraordinary Stories and Leadership Insights from The World's Most Extrem (788)/Leading on the Edge_ Extraordinary Stories - Robertson, Rachael.epub/toc.ncx(31,74): assertion failed: different playOrder values for navPoint/navTarget/pageTarget that refer to same target
Check finished with warnings or errors