Pokemon Platinum Eternally Corrupted Save

[Waffle]

I've had this problem for years now, and I want to see if it's possible to fix. Everytime I boot up my game, a message shows up that says my save data is corrupted and the previous file will be loaded, and then the previous file is loaded, which means there's not really a problem if I save twice in a row, it's just annoying, but it does stop me from playing the post-game, which sucks. I'm pretty sure the reason this happens is because whoever had the copy previously must have messed around way too much with an action replay, but I have no idea how to fix it. Also, that broken file is the one that shows up if I try to edit the save using PKHeX, not my current file.

Here's my save file:

POKEMON PL.sav

[Teamplasma N]

@Waffle I’ve loaded up the save data you mentioned about. It appears that the console was turned off while the game was saving which is why you got the save data is corrupted previous save file will be loaded. So all I had to do is save the game properly again and the message was gone. The save file is fine. However I did notice 2 problems 1 is there’s no hall of fame data and 2 I found dialga and palkias Pokédex data which was seen only and I couldn’t find giratina in the file anywhere. This means whoever used this data first may have edited the data in pkhex.

[Teamplasma N]

Also @Waffle are you on discord? If you are please reach out to me @ h3llfy73.