https://bugs.winehq.org/show_bug.cgi?id=45375
--- Comment #26 from halome halome@blockchainworldawards.com --- I did another test by setting the texture resolution to 'Medium' in game settings and by setting multiply_special to 1. This still caused the black textures to appear but it took longer for it to happen.
My Previous test which had the resolution to 'Medium' in game settings and by setting multiply_special to 2 still had black textures to appear but it took longer for it to happen.
So with both tests, I got the same results. It does not seem to matter if multiply_special is 1 or 2 but by setting the texture resolution to medium it does take longer to trigger the black textures.