O.K., new problem, it doesn't works "SO" fine
So, I have a lot of mangas, compressed into .cbz files.
The mangas are scanned, two pages together (page 1 & page 2 are in the same file, I hope you get what I mean).
When I import the cbz files into Calibre, everything is allright.
But after a bulk convert it turns out that Calibre always replaced the right page by a black page.
Any hint on that ?
EDIT : Turns out it doesn't just affect bulk convert, mut also "normal" conversion. What have I done wrong ?