As far as I remember, there is an issue of pocketbook cutting off meta data after a certain kind of meta data, so that e.g. the series data provided by calibre will normally not appear. There is some configuration file for calibre to bring the meta data in an order that pocketbook will read completely. Furthermore, a new firmware for pocketbook lux and lux 2 was announced (for July?) to fix this issue. Unfortunately, there is yet no update from pocketbook, but you might be able to patch calibre (needs a patch after each calibre update) until this issue is fixed.
|