In the Chaos Wastes, The Lost City of Marakza level, ‘Endure the Ritual’ part, there is a spot where enemies can’t path to nor reach. Even the Nurgle-curse ‘Malevolent Spirit’ will not be able to catch players in that spot.
See the spot here where I and Saltz are standing (notice that bots also can not path to the spot):
Spot where I, Saltz, and Kerillian are standing:
Even the Malevolent Spirit is helpless against the cheese spot and will be unable to catch any players on there:
Another related possible bug is that even if we do not stay inside the ritual area and just stay at the cheese spot, the ‘Endure the ritual part’ will still eventually end (unlike in Convocation of Decay). Is this by-design?