Hey guys,
I'm having trouble with a language setting of my books. The books are written/set to UK English, my Calibre is set to UK English but the Miscellanous files (metadata.opf + toc.ncx) in each ebook is set to English (I assume it means US). This results in incorrect word count reading as there are two different languages in the book.
The only fix I have found so far is to change the line <dc:language>eng</dc:language> to "eng-gb"
https://imgur.com/a/Wtdqine