Righteous Fire + Cast when Stunned Support

If you use the skill 'Righteous Fire' in conjunction with 'Cast when Stunned Support', then when you get stunned, the skill is used, an observable fire aura appears, and a buff appears on the top left of the screen. If you remove the 'Righteous Fire' stone and insert it again, the fire aura does not appear, damage around the enemies stops being dealt, the damage increase from the buff stops working on other spells, but the buff on the top left of the screen is displayed. Even if the stone is simply removed from things or inserted into another free slot without a connection with 'Cast when Stunned Support', the buff on the top left is still displayed, and the skill does not work.