Gamma, it's probably because you used FortWaffles's bone adder. BlackJax said previously that the issue you're having would happen.
and by the way, awesome work BlackJax. i've started messing around with it, and it's just amazing.
Thanks man, I've put a lot of work into it so far.
is it now possible to merge two models into one?
or vertex in brawlbox
No and no.

Is it usual, that when my Wii tries loading a file with a brand new DAE (Terra over Zelda) that it crashes with the annoying beeping at the beginning of the match? Do I must add the Dissidia Textures over Zelda's TextureA and TextureB? Can anyone help?
Isn't the model importing unfinished yet?
Yeah. The models don't have finished shaders or objects. So of course, you won't see anything and will get that annoying beep lol.
He said it works, but the models don't show up in game.
Like someone said before, when you import a model, it only has 2 bones

No, you're talking about model
swapping. And it only has two bones when you use Fortwaffle's bone adder, which doesn't edit the nodetree.
*waits for a change list from BlackJax*

Check the OP my good man.