When Ella is speaking Pig Latin at the hotel in Vegas, Lucifer seems to not recognize it, confusing it for German, even though he spoke Pig Latin to Amandiel in a previous episode.
Candy and Lucifer both describe his Snuggy as pink, even though it is clearly bright red.
It is repeatedly stated that Lucifer never lies (although half-truths are okay). When Lucifer and Ella realize the dead body in the hotel doesn't belong to Candy, Ella shouts in excitement. Lucifer, trying to conceal that Candy is still alive, tells the police officers working the scene that Ella is "not a fan of the deceased." However, Ella doesn't know the woman, so she can neither like nor dislike her. This means the statement that Ella wasn't a fan of the deceased a lie.