Completed all Venus missions with my friend. Last mission was supposed to unlock a "ship upgrade". Neither of us received the reward. We thought maybe it was a golden chest unlock. Nope. Got all 5 an no ship upgrade. Completed all Venus missions with heroic modifier. No upgrade. Thought maybe we had to collect from the shipwright at the tower. No upgrade to be seen. Checked inventory, not there either. Thought about replaying the mission but under the mission details the mission rewards are empty now since all mission rewards appear to have been claimed. Anyone else have this issue? The ship upgrade isn't a big deal to me since it doesn't really do anything except make your ship animation sequence look different. I'll live without it but thought the issue should be raised since it affected me AND my buddy. Must be a bug. UPDATE: eventually got the reward. Did all mission on heroic. I'm not 100% sure what triggered it but the replies below have some insight on needing to go to the reef after completing the gate lord mission. That could be the trigger but either way I eventually got it. Thanks everyone.