Giant spider boss in cave fell through terrain

Game mode: [Online]
Problem: [Bug]
Region: [Here]

We went into a cave to fight the giant spider boss and at some point while running about fighting her, she fell through some of the rocks on the side of the boss area. We hadn’t taken off much health so the rest of the fight was trying to jab her while she was inside a giant rock, twitching. At times she would appear to get “free” and be on top of the rock, but that wasn’t true.

Steps on how to reproduce issue:

  1. Engage boss
  2. One player attempts to flee or hide at the side of the boss area where there are large rocks
  3. Boss pursues player, fight boss on rocks
  4. Boss falls into big rock and can never get out