You should not receive a tradable item to take outside of the PQ. Why are you trying to take the Fire Ore outside of the PQ when you should give it to Aura? Since you quit the PQ midways the NPC will remember that until you complete it correctly, even if you have completed it correctly before.
It should not be other way around. So you are saying you complete the quest correctly where you turn in the Fire Ore to Aura, leave through the portal, and then you can't enter stage 2?
Using a 3 year old guide from this forum isn't reliable material. Tested it out myself, no issues completing the Zakum PQ and continuing to the Jump Quest. And considering the only thing you have shown so far is you quitting the PQ midways there isn't anything that points to a bug here.