I have one particular game back up that will not load. I have performed a check hash on the back up to verify there is no problem with the file integrity. I can see the white progress bar then a black screen until the Wiiu is hard reboot. Other backed up Wii games play from this same drive...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi