Update: Rift 1.6.1 Hotfix 1

GENERAL

 * Increased the amount of experience a level 50 character receives for Planar Attunement when completing Instant Adventures.
 * There is now a Porticulum in Quarrystone Basin in Stonefield!
 * Clerics: Mien of Aggression: No longer reduces healing gained from items.
 * Justicar: Mien of Leadership: General dungeon mobs who can mana drain will no longer mana drain Justicars with Mien of Leadership active.
 * Corrected the zone meta-Achievements so they remember how to count properly.
 * Fixed the calculation of the maximum possible Achievement score.
 * Crafting: Characters can now train to the next crafting rank from within 5 points of their current skill level cap.
 * Windstone and Stalactite-type Essences can now be equipped together.

RISE OF THE PHOENIX [Sliver]

 * Fixed an issue that caused more Seething Cores to respawn than intended.
 * Beruhast's flaming vortices are much harder to avoid outright!

LOOKING FOR GROUP

 * Fixed a bug where the Join button would show during a Warfront but not function - it now displays a lock with an explanatory tooltip if the Join option cannot be used at the current time.
 * You can no longer invite an Instant Adventure group to join a random dungeon with the LFG tool.

EMBER ISLE

 * The Swift Armored Ash Strider mount now appears as the artist intended - and should match the appearance of the Ash Strider standing in the pen near the mount merchant.
 * Fixed an issue causing the Ithkus' Rise zone event to fail after completing the Gushing Founts objective.

FREEMARCH

 * Man V Mandible: Fixed an issue that prevented some players from being able to complete this quest.

SCARWOOD REACH

 * The achievement Mushroom Soup should function properly once again.

STILLMOOR

 * In A Quiet Place: This quest can once again be completed.
 * The Spirit Walk: The spirit guide should now appear even if the wardstone at Thalin Tor is taken over by the Planes.

STONEFIELD

 * Slightly adjusted the location of Gorehorn the Mighty.

Source
http://forums.riftgame.com/official-rift-news/patch-notes/286163-rift-1-6-1-hotfix-1-8-00am-pdt-12-13-11-na-2-00am-gmt-14-12-11-eu.html