Warlords of Draenor hotfixes have been published the 10/20/2015 ! Here is the patch notes :
Patch 6.2.2a Hotfixes: October 20 (Source)
Creatures and NPCs
- Fixed an issue that could occur with Arachnis where players were unable to loot multiple items.
- What A Strange, Interdimensional Trip It's Been: Fixed an issue where Spooky Pepe found during the Hallow's End event was not contributing credit towards completing this achievement.