I recently just soft modded both my old Wii and Wii U and got everything up and running great. I'm using the latest version of USB Loader GX (3.0 rev 1260) and Nintendont, with the v10 beta 53 CIOS installed. I purchased a 128 GB Ultra Slim USB flash drive from Amazon (brand new) and backed up all my games. It ran smoothly for a day, but randomly when I loaded the loader on my Wii U it shower my flash drive as having zero games on it. Everything was deleted. I was annoyed, but whatever. I figured maybe I accidentally clicked "format" when the Wii U started and detected the flash drive. The flash drive was a little weird with the loader after that (it kept failing to initialize USB, games would be detected then disappear, etc.), so I formatted it using Bootify, which fixed the issues. Everything worked well throughout the day, but last night I was playing some backups on my original Wii and the flash drive was erased again! I plan on running a USB diagnostic tool tonight to see if I got a bad flash drive and will post my syscheck as well when I get a chance. Does anyone have any ideas why this is happening though? Both times I was playing a GameCube backup - could Nintendont be the culprit? Thanks in advance.