Level-Up ability stopped having an effect?

[Sefie1999AD]

The problem is when it says 8000 Exp that is exactly what I get.

You said you have to have Level Up equipped, but I learned the ability and shouldn't have to equip it right?!

When you've learned an ability, you no longer need to wear the equipment that taught you the ability. However, you still need to equip the ability to be able to use it.