Continuity mistake: Walter near the beginning of the film, is going over the ship's systems. He checks the fetuses inside a compartment and sees a dead one. As he removes it, the slot it came from is full of blood. He places it inside a container. Then as he hits the button to close the compartment, the slot has no blood in the next shot, and no implying he cleaned or decontaminated the slot. (00:08:00)

Alien: Covenant (2017)
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Directed by: Ridley Scott
Starring: James Franco, Michael Fassbender, Noomi Rapace, Katherine Waterston
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Alien: Covenant shows how evil android David tricked a colony ship to land and fall victim to a xenomorph infestation in this latest offering by Sir Ridley Scott. With Shaw dead and used to make more, android Walter beaten, and everyone else made into Xeno snacks, David sets a nasty surprise for anyone who follows. Sick, nihilistic movie.





Answer: It doesn't matter anymore at that point. He has full control of the ship and can change anything he wants. Including the logs, if it's necessary.
lionhead