[Frost015]

Originally Posted by Comfy.n

I can't test this on a Kindle at the moment, but I wonder what happens if you use the Calibre tweak author_sort_copy_method = 'copy' in your library.

The tweak I refer is illustrated here: https://www.mobileread.com/forums/sh...10&postcount=5

Hi! Already tried that but it did not work. It's like the Kindle has some kind of inner code that author sorts anything in KFX format as 'ln, fn'. It's not happening with AZW files, which is quite mind-puzzling, considering both are the official Amazon Kindle formats