Kindle Cloud / Device / Calibre library sync
I am having issues understanding when something is shown as existing on the Main Device / In Library and how the Kindle handles it. Here is my issue...
I have the seven Harry Potter titles. All from Pottermore, all up to date.
When the Kindle (Paperwhite) is plugged in Volumes 2 to 7 show as In Library when I am looking at the Device tab, and On Device when looking at the library. Volume 1 is a stranger to each source.
I deleted the Device book, and sent Volume 1 to the Kindle from Calibre. Big ticks all round, but now the book is showing on the Kindle as available in the cloud.
I deleted both, took a fresh copy from the Cloud, imported it into Calibre from the device. Didn't change anything. Strangers again.
I saved the AZ3 version from the Device tab to the desktop, and added that as an extra format to the record in the library. Still strangers.
I am now out of ideas. Does anyone know what is going on?!
Thanks in advance.