In quests: 1. Steal the artifact from Altir. I can't turn it in to Worok, and it's impossible to steal it. Worok just stands there and doesn't accept the quest.
2. Get 200 Elven Arrows for Tilir. I can't get them in the Elven workshop; it says I don't have enough reputation. Although, I've completed 100% of the Elven quests (haven't received the stone yet), 76% for Humans, and 46% for Orcs.