The
ColorPickerFrame is still using
texture:SetTexture(r,g,b) which had this functionality moved to
texture:SetColorTexture(r,g,b). The old method doesn't work anymore as some textures are now referred to by internal numbers.
This provides a quick fix for now.
Lua Code:
ColorPickerFrame:SetScript("OnColorSelect",function(self,r,g,b)
ColorSwatch:SetColorTexture(r,g,b);
if self.func then self.func(); end
end);