So, you guys managed to fix him respawning on daily reset so people can’t just revisit the arena and claim the 3 loot chests for free, and it’s cool to be able to fight this guy again.
But as you can see, on the south of the image near the nest border is his corpse, I climb and loot the chest, but there’s another Egg boss model watching there as well, like a clone. He has the targeting white dot and your character is still put in combat stance, but so far he doesn’t attack, thankfully so you can loot the chest rewards after beating the first guy in the arena.
He also does not aggro down into the arena after you climb down. So it’s a case of a double model spawn.