I've watched the episode ending several times and have not been able to figure out how this scene could maintain continuity.
In the scene Rei answers "I told her it was because they gave me life," when Kovacs asks her why she
However, moments later Kovacs says, "The only reason you wouldn't remember what happened is that..
you were backed up before the shuttle crashed."
If that was the timing of the backup, how could Rei have answered Kovacs as she did? She could not have known that answer.