Sandstorm inside the Palace of the Witch Queen

Game mode: [Online]
Problem: [ Bug | Gameplay | Misc]
Region: [EU]

Was just out exploring the jungle and decided to visit the Witch Queen. Discovered that both the Queen and the guardians are weak so after getting killed due to my weapon braking, decided to make a new one and go beat them up. Less than a minute after getting inside the palace and getting whopped around by the guardian, a wild Sandstorm jumped out of nowhere and killed me. I thought there are no Sandstorms inside closed dungeons and no Sandstorms in the Jungle biome, but looks like I was wrong.

Would post an image of the Sandstorm inside the palace, but heh, new user so no links/images

Steps on how to reproduce issue:

  1. Walk into the Palace of the Witch King
  2. Wait
  3. ???
  4. Profit