As far as I remember they had the wrong material all along, including the proto.
Oh that same old thing. Lots of the figures don't use the exact material from the film, it's about the best look in the scale not exactness, Maul should have clothes like the PF and 1:1 bust material but it's a smooth material instead, it happens. That's why I'm not concerned with Luke's shirt, it's a different shade and doesn't look as worn out but it looks to lay on the figure just fine and that's what counts to me, that the overall figure's look is natural and gives a sense of a miniaturized person.