FS II Nayu Advanced Dark Aura

I'm not sure of this if it's supposed to be like this or not but before, when I used Nayu's "Advanced Dark Aura" it would say [Advanced Dark Aura] below each character's Soul Rage bar but now whenever I use the skill, it just says [Dark Aura] and from my memory, I remember when I used the skill I would do at least 30k + DMG but now when I use the skill, I'd only do 20k + DMG. Is this a bug or is this supposed to be normal? . _ .

It's normal, the skill casts in layers I think.

The skills stack in layers and some has priority over others.