So I completed Shadowmourne this week and got the unsealed chest. It gave me the 5 items normally. I turned in the one for the mount first, but after that, all other quests became unavailable, and now I sit with these 4 other useless items in my bag. Is this a bug? Or are you supposed to only choose 1 item? I couldn't find anything about this matter so in the case this is intended, I got lucky.