Factual error: The newspaper you find in Chapter 2 with the "Dead body found in the mountains" headline bears the wrong date; "Friday June 17, 2020" never existed, since it was a Wednesday.
Character mistake: At the end of episode 2, you have to make a choice on who to turn to for help. In the post-episode summary, the choice produces an entry that says "I didn't went to see" that person, instead of "I didn't go to see."
Revealing mistake: In the intro of the game, look at the newspaper on the desk in the shot when you can only see the arms of the protagonist. The headline to the left of the picture is handwritten.
Factual error: The first day at Rosa's, there's a magazine on the kitchen counter containing some news about the Welcome sign being vandalized. The date is "Monday, June 10 2020." June 10th was a Wednesday.
Other mistake: For a task in Chapter 2, you have to hang a picture in the room of Rosa's buff daughter. The picture was already there in chapter 1.
Character mistake: When the protagonist checks out the photo of the sheriff's daughter, he comments "She's gEorgeous."
Character mistake: If you message Katie to check on her at the beginning of Episode 2, she tells you "We'll talk tommorrow, okay?"
Character mistake: Someone running the spell check on the script of this game must have added the word "acually" to the dictionary by mistake, because "actually" is misspelled this way sistematically (in episode 2 alone it happens twice in the nightclub quest, talking to Laura and then in the scene at Flavia's place).