Just as a test I tried to replace the texture of the mushroom in NSMB2 to make it purple. I imported it into EFE and it displayed it as purple, but then when I go to save I get this error: I unblocked external sources before unpacking and stuff. Does EFE just not support saving .bcres files? Or is it a problem with all CGFX files? I have tried it with multiple different .bcres files, so I know its not this one file thats the problem. Does anyone know why this happens? I attached the file below.