I have exactly the same issue on vwii and I finished up using wiiflow (which works great with SD card) instead of usb loader gx.Im having an issue on my vWii. I have HDD for my Wii U games and i dont want to have to remove every time i want to play wii games off my sd card however i turn on sd card mode and usb loader relaunches but tries to mount the wii u hdd. Unless i unplug the wii u hdd then it will load the SD card games. can someone advise me what to do?