Warlord of Draenor About Alliance Quests (Spires of Arak) BUG

https://www.wowhead.com/quest=35482/admiral-taylor

I'm stuck on an Alliance quest in the Draenor section.
(Я застрял на квесте Альянса в разделе Draenor.)

Admiral Taylor found <---- clear

Soulscythe slain <---- clear

Ephial slain <--- bug not clear

Quests related to Spires of Arak
Help me capture the final boss.
(Квесты, связанные со шпионской башней Арака
Помогите захватить финального босса.)

It looks Korean, but...
It's in NPC form, so it can't be attacked.Вложение 1141678

eorurqus, just wait fixes : https://forum.wowcircle.com/showthread.php?t=1326311

Thank you for your response!
I look forward to your further response.