After the rednand dumper erases your SD and dumps the NAND onto it, you have to put your /wiiu/apps directory back onto it. If you did that, can you see the files on the SD?
The thing is, I thought there was a problem with the homebrew launcher files so I deleted and replaced everything... I think there was a NAND file but I didnt think it was important so I deleted it... what can I do?