Should read this thread:
https://www.mobileread.com/forums/sho...d.php?t=167973
It describes as CoolReader not change those external sources do not exist in the system.
This bug must be added the separation of words for different languages, as the CoollReader starts "linked" to Russian_EnUS_hyphen_ (Alan). Pdb and can not be changed for other languages.
Two old errors, reported to Booxtor, which has not yet been fixed.
regards