"Ritualist's Hideout" visual bug when placing Challenge Totem.

YouTube video:
https://www.youtube.com/watch?v=0pqnqE-s9Ac&feature=youtu.be


1.) Critical:
Placing several Challenge Totems causes these black/dark (textureless) squares to appear in the following newly added Hideout: Ritualists' Hideout.

My friend has also encountered this exact same bug.

This bug is persistent regardless of the user's graphical settings, should it be all high, all low, or a combination of these.

2.) Negligible:
The light emitted by Challenge Totems casts no shadow on certain objects / character models - not sure if this is a bug.