Originally Posted by PatNY
... But just to be clear, this is not the main issue here. In my case the extra items were added into the TOC upon a simple Calibre conversion.....
I am having the same problem of having extra entries added to my TOC by Calibre. As Jackie_w suggested in answer to an earlier question, I don't even use Sigil. I thought checking "Do not add detected chapters to the Table of Contents" would fix this, but no luck! Is this a bug in Calibre? TIA