Okay, i'll make this quick, for some time now I've been playing SSBB with all sorts of hacks (textures,PSA,etc.)
on my SD card with USB Loader GX, but recently my SD slot on my Wii is broken, so unfortunately, I can't use those kinds of hacks unless I add them in to the ISO. I use Wii Scrubber 1.4 to insert the textures and etc.,  on the SSBB ISO file for USB Loader GX, when I start the game, everything's fine at first, but whenever i select a character whom's textures (or .Pac Files was changed), my HDD Stops working. The game never freezes, but when i'm trying to select the character with the textures, after a few seconds the music stops playing and it won't load anything. (Note: this doesn't happen with every texture I use, just only a few.)

What exactly am i doing wrong? is it the HDD or is it the ISO., or could it just be the textures i'm using?
My HDD is a WD My Passport USB 3.0/2.0 FAT32 just in case anyone needed to know.