Wiiflow IOS222 works now but it still has the same error as Wiiflow IOS 249 (Can't open BigFile). I tried looking online for someone with the same problem as me but all I could find was fixing the Can't open Bigfile error.
Just stick with 222 then. In my experience, Hermes cIOS's (222/223/224) work best overall for game compatibility. Waninkoko's cIOS (249/250) are often used by utilities, but don't always work with games.
"Macs are the Perfect Computers," said the Perfect Idiot.