Unable to Purchase Rank 4 of Mythic+ Essence from Thaumaturge Vashreen after Completing the "Keystone Master" Achievement

Updated: 2 years ago
Article ID: 249042
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Common Problems

  • I've completed a Mythic+ 15 and Thaumaturge Vashreen will still not sell me the essence.
  • I have the Keystone Master achievement but the essence is still locked.

As the tooltip specifies, this requires not just the base Battle for Azeroth Keystone Master, but the Season 3 (or later) version of the achievement. Battle for Azeroth Keystone Master: Season Three.