ROM Hack bch Yielding falsely transparent textures?

[netnei]

I'm trying to rip the models from Dragon Quest Monsters: Joker 3 Professional, but when I open most of the bchs in Ohana 3ds major portions of the textures are either partly or completely transparent. Messing with the exported pngs in Photoshop has yielded no results. Can someone please help me figure out what I'm doing wrong?

 

[netnei]

Here's one of the .bch files in question