lost bladers still have an issue where their faces look like masks and do not match the skin tone of the rest of their body in base game and dic also the bosses annia, rosa/verge, and gira have this problem as well as for the other blader bosses i do not think they do
as for prometheus his skin tone is blue and in phase one he is blue but he phase 2 model his skin becomes white though i am unsure if this is actually a bug but looking at the art book his phase 2 should be blue as well
these were problems before update 1.2.003