List of In-Game Bugs- First report_ might be more later on

Ingame name: Oneshotkill

Bug1: the Paladin talent The Art of War does not work. it is the spell to allow instant flash of light
Bug2: Paladins cant use Holy Shock as a heal or as damage
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DeathKnight bug1: DKs do not start out with a mount even if you hit "C" and go to pet tabs they dont have 1
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Any Stun: If you stun any mob at any moment it will reset its life and it will stop attacking you. this is very unhelpful in a boss fight when someone accidently hits a stun.
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Mage: Mages cant summon their water elemental
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Seal of Command: the Paladin ret spell Seal of command will just hit any mob within a 1000 yard distance basicly and they will chase and attck you so you can be attacking a boss and 2 other adds come along and attack you.
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Hunter:

Pet: If pet is put on defensive and you start attacking pet just stands there. You have to press attack.
Pet Health: Doesn't scale with hunter stamina. I think it only scales with lvl 80 stats.
Aspect of the Dragonhawk: Does not provide attack power or dodge at all.
Disengage: Don't work.
Volley: Only hits a small radius.
Talent: Piercing Shots. Bleed effect don't work.
Talend: Spirit Bond. Doesn't heal HP of hunter or pet.

Warriors and paladins have 95% dodge bug. Ofc mybe DK too

Bug1: the Paladin talent The Art of War does not work. --- Fixed

Warlock

Demonic Circle: Summon:dont work

Demonic Circle: Teleport:supose to teleport to the portal but dont do nothing

Priests Mind Flay ticks once in 3 sec due to the high spell haste. Spell ID 48156

Vampiric Embrace does not heal at all. Spell ID 15286

Psychic Horror doesn't make the enemy drop their MH weapon for 10 sec. Spell ID 64044