I have a problem with the Ironwit's quest, about his blueprint. I got both the red and the green potion, the red one poisonned me that's ok, but the green one did nothing... Actually I'm in 5th level and i got about 6 or 7 green potions and the same number of red ones, but none of the is a levitation potion...
It looks like none of all this potions are working... weird ! I did cast Identification on them, did nothing too...
And I did never find the "Uus" rune to levitate or make great leap using the magic...