Here are the update notes from a hotfix that was pushed live this morning (from the patcher):

*** Hotfix ***

- Kyluc in the Feerrott has added Spell: Protection of the Vale to her list of wares.
- Some of the inhabitants of Morell's Castle and Sanctum Somnium have become more resistant to slows.
- Zonoraz in The Grounds will no longer heal herself or wipe her hatelist if you damage her too quickly.
- Ambushers will now correctly spawn at certain points of the quest Dissolution of Reason.  These ambushers will now depop if left idle long enough.
- Alys, an unknown entity, and Piper Nasscul should no longer assist other NPC's in the Hippity Hoppity Kill mission.
- Creatures in the Hippity Hoppity Kill mission will no longer summon at 100% health.
- Creepy Alys should no longer despawn if she's left idle too long.
- Added key drops to the Fear Itself raid that will be needed for further raid access in the House of Thule expansion.