I was following plailect's guide on NFIRM downgrading. My source 3DS had a save file for Pokemon Moon which was installed on the system. I made the NANDmin.bin backup of the 3DS, just as it says in the tutorial. Upon system transferring, I restore my source 3DS from the NANDmin.bin backup I created to find that my Pokemon Moon save file is gone. How do I fix this?