No, it's not that mate. I managed to successfully transfer multiple Pokémon at the same time by converting pk8 files to pk7, but Meltan and Melmetal are the only ones that I can't do that with. There's that error popping out in Pkhex
Any possible way to transfer GMAX mons?
EDIT: I have a problem with Melmetal. I converted pk8 to pk7 file, but when im trying to put it into Pkhex, it displays error code saying:
Cannot convert a PB7 to PK7
Cannot transfer this format to the requested format.
My file is pk7, no idea why it's happening. It worked flawlessly with other Pokemon, such as Dracovish and Grimmsnarl.