This might be a bug, but for now I’m filing this under feedback, as it also includes feedback:
When running the Soulfire Bastion dungeon and changing zones within the dungeon, the shield will change back to Necrotic every time. This can be unexpected and a bit unfair for the player, if they immediately zone out into a fire-cone attack.
What should happen is the shield state should persist when changing zones. That would prevent this unexpected surprise.
Likewise, the shield itself is very hard to see. The display next to the health bubble does not easily distinguish whether the fire or necrotic shield is up as the status has both blue + orange coloring to it.
Thanks.