No, I'm not using "Ignore save file checksums". I have edited the file with Pokegen and Pokesav (item editing before you added support for it), but I haven't manually edited the file (hex editor, etc...). It's a bug with the new versions, as I have found a copy of Pokegen 3.0.5, loaded the save file with it (I attached the save file to my last post) and the Pokemon is shown in box 18, like with Pokesav and in-game PC.