I was eventually able to sort this out. I had "mobi" checked and also the box for the "new format". None of the mobi files generated with these settings worked on my Kindle Paperwhite 2. What is weird is they worked fine on my Kindle for Mac app, but not on the Paperwhite.
When I instead checked "AZW3" they all worked fine on both.
This is with the Mac version of Calibre. It could be that this isn't an issue on the Windows version.
|