I have come across a few incorrectly defined material definitions in 2.4.
Brass_Foil, Brass_Hammered
Red materials are actually gold (brass_type_select is 0.33f instead of 0.66f)
Brass_Polished
Gold and red materials are actually yellow (brass_type_select is 0f instead of 0.33f and 0.66f)
Not sure yellow “Shiny Polish” export is defined correctly, gold and red shiny polish do not match yellow shiny polish despite this…