Epic_stuff, your mods are amazing!
I'm looking forward to play this one on Wii U.
Thanks! I hope to release the Wii U version later this month. The only reason it hasn't been released yet is because of the lack of resources. I guess that people want it so badly, they're willing to take it unfinished.
Actually I also have a problem myself. Might be the same as you. Making custom textures functions great but animated objects and the smb3 underworld background gives me an "assertion error" instead of "finished converting" in the command prompt. Any idea how to fix it?