Grave Matter event doesn't spawn anymore on my solo map. [Dec 10-11]

[OlSkunGun]

I forgot to mention that 10 runs out those 72 were dedicated to knocking out thralls:

• 5x Boreanz Spowity [he was spawning at Mound of the Dead]
• 5x Stathem Balsamista [he was spawning at pirate bay near ocean].