Isolation Vault stage 2 marked enemies spawn outside combat area

[Keranzu 17]

Sometimes the marked enemies during stage 2 Isolation Vault spawn too far away, making the objective near impossible to complete.

Spoiler

 

[Moonwolf1967 2]

I just attempted and failed the same vault twice in a row due to this bug.

Each time, two marked enemies spawned behind the door I was trying to open, and toxicity maxed out before another spawned.