From the December 7, 2021 patch:
- Fixed an issue that prevented the Hole Key from saving to your list of /keys.
This goes along with keys being moved from your key ring to achievements, in the same patch.
To buy the Hole Key, you first need Bone Crafted Key to operate the elevator into inner Paineel. Then use find to locate Rallia. Uncheck [ ] the "Show only items I can use" checkbox in the vendor window to view and purchase Hole Key (no trade). Head to the underwater rock door that leads to The Hole zone, and click the rock to keyring it, with the message "Hole Key has been added to your key ring". Once you've done that, the next time you pick up the item out of your inventory it will poof with the message "Hole Key vanishes as you commit its details to memory."
Edited, Dec 7th 2021 8:46pm by nytmare