Known Issues:

Wintergrasp - Resolved
Wintergrasp has been disabled following a confirmed issue. This is being looked into and we appreciate your patience during this time.

http://forums.wow-europe.com/thread.html?topicId=7700830580&sid=1

If you experience further problems with this, please report them in-game to the Game Master team.

Ritual of Summoning
This spell currently has a 2 minute cooldown which differs from the information in the patch notes. This was a last minute change due to the spell having exploitative uses, and we apologise for the inconvenience to law abiding Warlocks whilst a resolution is investigated.

http://forums.wow-europe.com/thread.html?topicId=7701100730

Warlock Minions - Resolved
Warlock Minion HP values can be inconsistent with the intended behaviour and is being looked into.

http://forums.worldofwarcraft.com/thread.html?topicId=14496620664&sid=1&pageNo=10#193

If you experience further problems with this, please report them in-game to the Game Master team.

Howling Blast
This Death Knight talent has a 5 second cooldown which is not listed on the tooltip. The cooldown is intended, the tool tip is not.

Human Female Animation and armor visuals
There are some human female animation errors, specifically when using two-handed weapons or shooting with a ranged weapon and with the display of certain armor pieces. This is being looked into.

Hunter Aspects
Some Hunter aspects behave as if they still have a global cooldown. The design is that Hunter Aspects should not be on the GCD and this is being looked at.

Deadly Gladiator Off-Hand Requirements
It appears all Deadly Gladiator Off-Hand weapons have a display issue. The required personal and team rating for purchasing them is 1930, and not 1830 as shown in-game.

Mirror of Truth and Tears of Bitter Anguish Tooltips
The tooltips for these two items have been changed to indicate that they only work for melee critical strikes. This is incorrect, and both items still have the chance to proc from ranged critical hits.

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Reported Issues of interest:

Mail
It would appear that some players are now having difficulty retrieving certain mail from the mailbox. This is typically exclusive to Auction House mail, however there have been a few exceptions involving player sent mail as well. We advise you to wait some time when receiving mail before attempting to collect it. Please contact an in-game Game Master for assistance with the matter.

Fishing
There have been a lot of reports from players reporting that when they fish nothing is appearing in the loot window. This is being looked into.

Utgarde Pinnacle
We have had some reports that Skadi the Ruthless is resetting in the middle or close to the end of the fight. This is currently being investigated.