I havent seen something like that myself, except as a sort of a bug - where items display requirements according to which character is actually selected - while you look over other character inventories - which does not change the selected character, - so all items and equipment show requirements relating to selected character, not the one whose inventory you are looking at.
If its not that then i have no idea what youre talking about.
All equipment and items should not have exactly same requirements? maybe?
