Since the update, I can't buy Elixers of Mending. Anywhere

[Gnomish_Inquisition]

deliberate, look on your hotbar, your potion is permanent there, also mentioned in the patch notes pots are removed Grim Dawn Version v1.2.0.0 + v1.2.0.1 Hotfix 1

• Health and Energy Potions have been removed from the game. The character now has potion skills baseline and does not need to keep them in their inventory. Dedicated potion buttons have been added to the Quickbar.