So I had third place on a flight earlier and when the shuttle landed on my runway, I clicked it and the shuttle just stayed there and would disappear from the runway. I rebooted the game and then my space mission page had placed me back into the main red launch area and I had no reward to pick up, so I lost out. Nasty bug; I get guest planes freeze on the runway occasionally which I don’t mind so much, but a prized shuttle is just really annoying!