1. Dragon egg quest - The one where the dragon says she'll join you if you find her egg. I found her egg, brought it back to her. She said she would join us... no dragon.
2. Alnor's Armor - Might have the name slightly wrong. Completed the quest and got the armor, but my Sovereign can't wear it? I've also noticed she can't wear any of the cloaks either.
3. This latest game, several quests would generate their quest locations, but I couldn't interact with them at all. It was almost as if collision detection was off for them. Some of these were the initial location to start the quest, others were destinations created for the quest.