HoV Skovald Aegis bug?

Hey short post.
I was inside +20 HoV and my monk tank droped the aegis during ragnarok that lead us to die and that happened twice. We went inside the dungeon to try some spells and actually Expel Harm and Spinning Crane Kick drop the shield and i find this odd since even transcendance doesn’t remove it.
That would be a nice thing to let Tank monk use these abilities since every tank can hit without dropping it. Maybe i’m wrong but that was really surprising.
Fun fact on that key, i just said before engaging skovald this boss is a clown nothing wrong can happen. Well that’s karma.