Small problem with models from Toaru Majutsu no Virtual-On (PS4)

[MakutaMaster962]

I attempted to import 3d models from the PS4 version of the game "Toaru Majutsu no Virtual-On" into Blender using import_valkyria with almost-complete success (since this game uses pretty much the same game engine/file formats as Valkyria Chronicles anyway). However there's something that I noticed that didn't turn out correctly: on quite a lot of the models, the "Decal" textures (as I call them) aren't showing up on the models, despite them being displayed on the textures list. I've tried practically everything I could think of (tinkering with nodes, UVs, alpha transparency, etc.) but no luck. Below are some example screenshots for reference:


Isolated Texture example 1:
   

Missing Texture example 1:
   

Isolated Texture example 2:
   

Missing Texture example 2:
   

And here is a link to a couple of sample models as well:
https://www.dropbox.com/scl/fo/rvb9d3l17...15gvm571b3

The "import_valkyria" importer script for Blender is needed, since the models are in .HMD format and the textures are packed into a .HTX format file.

  import_valkyria-blender.zip (Size: 276.75 KB / Downloads: 51)

Can anyone please help me fix this problem I'm having?