So recently started using DIOS MIOS for GC backups along with Wii backups off HDD, a friend was interested so he gave me the HDD to do it with, it is externally powered and partitioned with FAT 32 for the first partition, and NTFS as the second partition. I am trying to get it to work with WiiFlow, but it just doesn't see the drive. I formatted and partitioned it with EaseUS, and used WiiBackUpManger to put backups on the drive. It works with every other drive I have but not this one.
Could this just be the HDD its self?
If there is a list of supported HDDs that would be great if I could be lead there.

SideNote: it is connected to USB 0 (the outer USB port)