well hello again!
I've done some small tests here, first i created a new emuNAND based on my updated stockNAND with the latest firmware on a new SD card, just with the needed files from atmosphere, Hekate, sigpatches and it's working good.
After that, i moved the copy of my old emuNAND in a lowest firmware, that is file based but created from my hidden partition one, to this new SD card and as expected, it didn't worked.
As i had similar problems before after updating firmware and corrected with an Atmosphere update, and also everything was working perfectly before i did this latest system update, i suspect that somehow, the issue is related to the lower firmware version on my emuNAND, but if not, there's any way to migrate my games and saves from this old nand to a new one? That is, there's any software to copy those things to a computer. then move everything to the new emuNAND?
I think it have some kind of encryption but, maybe it can be done with my backuped keys or something.
Thanks for help.
EDIT:
Well, it looks like NxNandManager can do it lol, i guess that's my best bet, i'll try to restore all of my saves with checkpoint and reinstall all of my backups.
Hope it does the trick.