This happens when I got level 10 and I open the character option.(android)
Edit: In battle and leveling up doesn't show up.
Edit2: Now is gone how strange. Maybe is a error that sometimes show up.
Edit3: If you have this error, open the character menu in battle then check yours stats, if for some reason you go back to the battle(no pressing return) the error dissapears.But then come back much later.