Hi so I used Immolate on my fire wizard. 250 to myself, while giving 600 damage to opponent. So I actually killed myself doing it but it killed the enemy. So now when I go back to the dungeon after technically completing it I cant use the shrine at all. Its the last shrine to, I have been in the dungeon trying to figure out ways to get it to work other than completely restarting the dungeon.
Without Dungeon Recall, you'd have to start over the dungeon unless you were in a battle with at alive team member. You died first before the enemy, hence, you were defeated.
So, I'm not sure this is the logic the game is using hence would probably explain why you're unable to interact with said shrine.
There however has been numerous bugs in the past surrounding this particular dungeon, not sure if this was an unresolved on as it has never occurred to me.
You may have to repeat the dungeon without dying this time.