Such as:
If I load GS Japanese save file, PKHeX always says checksum invalid, even the save file is untouched, but still can edit and save.
If I load C Japanese save file, PKHeX always says checksum invalid, even the save file is untouched, but when I edit, save and back to the game, the game says the save data is broken.
Solution:
I fixed these issues with hex editor, just download these attachments and enjoy!
But if these files can not edit GSC US save file as well, I don't know how to fix that, since I haven't play US version yet.
(sorry for my poor English, if this topic can not post here, please delete...)
Edit: upload new version.
PKHeX (170207).zip
PKHeX-mono (170207).zip
PKHeX (170225).zip
PKHeX-mono (170225).zip