After installing A9LH and swapping my NANDs somehow I managed to inject an old copy of my SysNAND into my current SysNAND and every now and then I'll streetpass an old copy myself. At first I thought "this is weird" assuming it was only some sort of glitch and won't happen again, but it continues to happen every 8 hours lol. I'm wondering, does anyone know how I can fix this problem without wiping all of my games and data?