[Help] Issue with dual-classed characters' sprites

Hello.

@RVNS and @jonusiescu have been so kind as to help me test the mod I'm working on, and they've run into a most vexing issue I can't seem to wrap my head around. After installing the component that restores the original BG1 character sprites, dual-classing any characters results in a sprite change that seemingly makes no sense.

For example, dual-classing Imoen gives her a BG2 male sprite.

Other cases they tested revealed that Female Human Fighter changed to BG2 Male Dwarf, regardless of class.
Female Human Cleric changed to BG2 Male Fighter (or Cleric; they look pretty similar.)
Male Human Fighter or Mage changed to BG2 Male Fighter.


It's been forever since the last time I played through the game, let alone dual-classed a character, but IIRC dual-classing should leave sprites unaffected.


I guess the first step would be to double-check my WeiDU code?

This is a copy of the tph with the code I'm using to apply the BG1 sprites.


Thanks in advance to anyone who can help me.