Why do my Pokemon always gain the same experience?

Question

Two scenarios: Chesnaught goes in first, I swap out to Delphox and defeat a Swalot, each Pokémon gets about 2800 points each
second scenario: Delphox goes out first and defeats the Swalot, and gets the SAME amount (2800). Is this a glitch, because if this is correct, this change makes very little sense.

Comments

Did you have EXP Share on?

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In your second scenario, Chesnaught is not involved, right? And are the Swalots the same level?

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Because they can?

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EXP share was not on. No, chesnaught was not involved in the second scenario. Not just the same level, the same trainer (I reset and battled differently)

Answer 1

I suppose this is a great new addition added to X and Y.

I also experience this as well, so it doesn't seem to be a glitch occurring to only you.
Game Freak have done a lot of things to experience mechanics this gen, so I assume this is just one of them.

Hope I helped. :)
Source: experience