At the beginning of the episode, Professor Parker shows Max, 99, and the Chief a model of what he describes as the same kind of ship as the "Evening Star," on which Max will be sailing. The model has the superstructure at one end and a much lower area where the cargo holds are, much like a tanker. But the ship shown in the establishing shots in the rest of this episode and in Part 2 is a completely different kind of ship.
At the beginning of the second act, Max has a large wet spot on the left shoulder and left sleeve of his suit jacket, from standing near the porthole where Agent 44 was talking to him. When Max hears someone trying to open his stateroom door, he walks to the door and suddenly there is almost no evidence of the wet spot on either his left sleeve or left shoulder.