Keko

Can someone please explain the difference between the regular and the "Exp Patched" versions of the patch? Because I tried the regular patch first and I noticed that my pokemon weren't gaining any exp. (I'm hoping that this wasn't intentional; that makes absolutely no sense to do that.) But then I noticed while playing the "Exp Patched" one, which is the only one my pokemon gain exp on, they gain exp at different rates. Like, if I battle the same level pokemon with different pokemon, they each gain different amounts of exp from the battles; or if I switch pokemon during a battle, the exp is NOT divided evenly between the two pokemon that fought; one gains more or less than the other, which shouldn't happen. What's going on here? This shouldn't be happening.