Exp Egg error

So I have a few patches on (none that say they mess with the exp egg) and just noticed that when I defeat all the enemies in battle, the exp doesn't double. It displays the same with or without the equipment.

I used most of the patches from here:

http://www.angelfire.com/al2/imzogelmo/patches.html

and here:

http://novaliaspirit.99k.org/ff6/patches.html

as long as they were for Headered ROMS and none of them say anything about messing with the data. Is the change not supposed to show in battle? It does say I gained the exp in the status, just not on screen.