PKHeX corrupting Pokemon Let's Go save

[TrainerMaster]

Using The Latest PKHeX. If I edit anything on my save and export it, Pokemon let's Go Eevee says the save file is corrupted.
I'm attaching the original save and the corrupted one (just did +1 Pokeball).

 

Edited April 18, 2020 by TrainerMaster

[Kaphotics]

You're likely importing files to your switch incorrectly.

The "save is corrupted" message is a catch all for anything wrong with the stored saved data (bad filenames, bad transferred data, bad checksum).

[TrainerMaster]

3 hours ago, Kaphotics said:

You're likely importing files to your switch incorrectly.

The "save is corrupted" message is a catch all for anything wrong with the stored saved data (bad filenames, bad transferred data, bad checksum).

Hm... so I'm missing something. Here what I did:

1. Exporting switch save using checkpoint and transferring it to PC.
2. Load the save at PKHeX and SAV > Items > +1 Pokeball
3. File > Export SAV > Export Main (same name as the original save)
4. Transferring it to switch and using checkpoint to importing it back.

What did I do wrong? Do I need some extra steps I'm not doing?

 

[Kaphotics]

"Transferring it to switch" is too vague. If you're using FTP to transfer, you need to set the correct transfer protocol (binary), otherwise it will truncate your save data (corrupt).

Try exporting it again from your console and seeing if PKHeX loads what you tried to import.

[theSLAYER]

I tried what was said above, except done via an emulator, no corruption.

OP, can you:
1) specify how you transfer back to Switch (FTP? SD in computer?)
2) Show us a screenshot of the folder containing your save? (place the screenshot inside a spoiler in the post, before you post it)

[TrainerMaster]

Yeah, I was using FTP. The transfer protocol was set to automatic, after setting it to binary, the problem was solved.

Thank you all!