GGG, did you forget something... [EDITED after I figured out what happened]

[EDIT] I teleported back to the Mirage opening and instantly got shredded. They were not spawned Eater mobs as I stated originally, nor had I exited the Mirage. They were Ritual mobs that were drawn away from the altar to the Mirage portal. I don't know if this counts as an oversight, but it feels like bullshit either way. [/EDIT]