I am attempting to add some items into my Emerald Crest run. To my knowledge, pkhex works on nups patched ROMs. But when I move my save into pkhex and try to add items, I receive an "Unknown Item Detected" even though I have no items at all in my bag or on my pokemon.
I hit "OK" on this error, and add 40 rare candies, then export the new .sav over the old .sav
And then when I try and load the file into mGBA, the save is corrupted.