Got a big scare...after updating to yesterday's nightly build, the data suite installation went fine, and emunand opened, but i got a big "nintendo error message" as soon as i inserted Final Fantasy III in the cartridge slot. I switched off the 3ds and on the subsequent 2 reboots "sd card data could not be accessed" with automatic boot to sysnand. (I use a samsung evo 64gb micro sdxc in its dedicated adapter but had no issues until then). I then put the card in my computer to check if it was corrupted. It wasn't apparently. I made a back up in-case. Re-put it in my 3dsxl, it booted normally this time. Then I tried booting with FF3 inserted, it worked, i also tried to run it from emunand, with success. Any idea what might have happened there?
Ps: I made an Emunand back-up just in case.