Elemental Forums
Have three midnight stones on the hero, but the quest location just keeps telling me to come back with three of them.
Same thing happened to me, at the quest which was supposed to give me a sword. Later on I found a new quest requiring midnight stones and it worked. Got myself a nice shield for 3 midnight stones.
Do you have an exact quest name and level for this? I didn't get to play much at all since it released late last night and I'm at work, but I did pack up the quest XMLs to look through at work, so I can see what's wrong with it if you have the quest name and level.
I'll have to look at quest's name when I'll get back home. I think it was a lvl 1 or maximum 2 quest. It is still active, so I guess there is a way to find its name.
Thanks gabisar 
I've found it in the XML, however looking at the quests there's some inconsistency about how it's structured. There's a level 2 quest called "The Legendary Blacksmith" that asks for 2 midnight stones in exchange for a shield. Do you know if that one works? Looking at the differences between the two now.
Ha, actually found a minor bug with the second quest.. even though it rewards a shield, it lists the "Sword of the Sovereign" and has the picture of the sword.
<RewardText>The Sword of the Sovereign</RewardText>
<RewardImage>EnchantedSword1.png</RewardImage>
<GameModifier InternalName="Reward - Shield of the Sovereign">
<ModType>GiveItem</ModType>
<Attribute>SovereignShield</Attribute>
</GameModifier>
Oopsie
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