Molten Vault Ixchel's Torment Unique Strongbox Spawn prevents Progression of Campaign Maps Instance

Having the unique Strongbox Ixchel's Torment spawn in a certain small transitional room in the Molten Vault in Act 3 is preventing me from moving on through the map as the game keeps sending me back to it's surrounding area no matter what I try. I am also able to walk through the Strongbox as if it didn't exist.

Here is a screen recording of the issue uploaded to Youtube. Hope that helps.

https://youtu.be/CFTyojgE2aI


Edit: Adjusted the Title to hopefully make it a bit clearer as to what was meant. Apologies if this or the previous title caused any issues or confusion.