Additional exponation to my last report to prevent the rover from “exploding,” you have to remove the batteries and oxygen tanks, briefly get into the vehicle, and then put everything back together again. Then there's no problem. This only happens when you're standing in the hangar with the rover. I think this has something to do with the fact that none of the vehicles are positioned correctly on the ground after you have finished the game and restarted it. This doesn't seem to be a problem outdoors, but in the hangar it causes a collision problem.
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