It seems people have had issues with the DLC transfer but I seem to be having an additional issue. After transferring my Wii to my Wii U I cannot get Rock Band 3 to recognize the same SD card I transferred to my Wii to Wii U. When loading the game it says I cannot access my content on the Wii, then asks to save to SD card. That will not work either.
Not sure what to do. I can go to the store and download the songs I purchased in RB and only save to Wii memory, also the RockBand2 DLC is gone and I cannot copy it from the Wii to the SD card. I'm in transfer hell.