Factual error: Season 2, Episode 1: Two women are diving and need to open an electrical panel. The mother drops the knife she is using to twist off the screws. Her daughter picks up the blade – by the blade and not the handle – and then proceeds to twist the access screws. The screws are on the panel at each front corner. When the panel is removed, there are no front-facing screw holes. All the screws seen are on the inside of the panel to the sides.
Factual error: Season 2, Episode 1: Cleon is fighting some "ninja" warriors. One of them slices part of an android's head clean off, below the right eye. When the android is next seen - with part of its head cut off - the slice is above the right eye. The right eye is fine.
Revealing mistake: As Gaal is mourning Salvor, the camera is panning back, and everyone gathers around. You can see the little boy that died lift his head slightly. (00:37:17)