Shiro-4 the vanguard scout shows as if he has something for me but when I talk to him, there's nothing. No quest, no mission. The alert over his head keeps going off and I keep flying to Iron temple for no reason. I've played with other players who have reported the same. Check it out when you get a chance. Thanks
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While the Thorn bounty is active, there will be a marker over Shiro. When you are done, it will go away.