Name in quotes is not the real name of the book, but I think it can be figured out...
calibre, version 4.4.0
ERROR: KFX conversion failed: <p><b>Cannot convert "Bobbits, Bingwraiths, etc 3-in-one ebook"</b><br><br>Exception(u'Property margin-right has multiple values: "0.25em" and "-35.75em"\nProperty margin-right has multiple values: "0.25em" and "-35.75em"\nProperty margin-right has multiple values: "0.25em" and "-35.75em"\nProperty margin-right has multiple values: "0.25em" and "-35.75em"\nProperty margin-right has multiple values: "0.25em" and "-35.75em"\nProperty margin-right has multiple values: "0.25em" and "-35.75em"',)</p>
Is this a KFX issue or a calibre one? Thanks!