@RadicalxEdward - Yeah. Last release fixed bucket of OSX problems.
Files created by KCC are hybrid MOBI. Not MOBI and EPUB combined. And that is reason why even Calibre fail to edit metadata - No editor support editing both header sets that are used in hybrid MOBI.
Additionally any re-conversion of output MOBI will corrupt file if any tool other than Kindlegen is used.
KCC already support metadata! It will read any data embedded in ComicRack format:
https://github.com/ciromattia/kcc/wi...cRack-metadata
Obviously it only work with CBZ/CBR/CB7 input.
@Tushin - I know. But non-native dialog windows make my eyes bleed.