The Meaning of Life, the Universe, and Everything.
Lately I channged my Minecraft skin in skin studio and skin scanner. The skin does work in-game and does appear but on things like paper craft it still shows my old skin. I have re done this multiple time but it just doesn't work. Also I am not using the alex skin type and all skin search engines still display my old skin.
Those are linked straight from s3.amazonaws.com (old skin server) and skins.minecraft.net (new skin server) (...well actually skins.minecraft.net redirects to textures.minecraft.net and that's the link I linked in).