Beyond Infinity

I completed the quest Beyond Infinity, it shows as completed under my quest. But I'm still capped at level 95. I did the boss fight, warped back, talked to the Nomad Moogle, saw the cut scene, and can even Domenic's battlefield warp. But my level cap did not increase.

Have you tried gaining EXP yet?

If you toggled your EXP mode to merit points, you need to set it back to EXP or you won't gain any.