I'm not sure if anyone noticed this, but things like RWC Pendant+Ring set bonus, hidden enchants, and other things that add a percentage to one's matk or atk don't seem to function. It doesn't appear to make any difference whatsoever in the character status pane. +% damage, however does seem to function, just not +% atk/matk.
One possible situation could be that perhaps the bonus is hidden, still applying but not appearing in the status window, but for the life of me I have seen no improvement in numbers appearing in my attacks either. Any thoughts, or has this topic been covered already?