I can't figure out why my Wii won't play Wii games I've backed up myself.
I've installed everything according to the complete softmod guide. USB Loader, GX WiiFlow, and CleanRip are also installed. Homebrew has been installed for years (though I've updated it to 1.1.2), but everything else has been installed recently (like in the last month or so), so they should all be up to date. USB Loader GX freezes when I try to back up a game, CleanRip works. Then I've used Wii Backup Manager to transfer the .wbfs files. The games show up in USB Loader GX and WiiFlow, but when I try to launch them, it just shows a black screen and the Wii freezes.
I downloaded a couple of games to see if they work, and they do work just fine. So what is it about my backups that make them unplayable?
Specs: European PAL Wii, 4.3. Maxtor external HDD, 500 GB, with its own power supply, formatted as FAT32. I have also tried another HDD, no difference there.
Any ideas?