Oh! It doesn't matter how far you are in the game, the way the system works, is that it questions if your character has at least 500 experience points.
You can check your current experience points when you go to menu > Status > Your character.
I think I might have found the problem, yet I'm not fully sure.
It might be because you're playing the male character. I had set the EXP value for the male first and for the female character after that in the event, which could mean that it ends with setting it only to the female character.
If I'm right, then it should be fixed now and working with the next update!