The two scenes that felt out of place because of music
The scene where they was cleaning the blood from Beverly's bathroom, thats some serious demented dark stuff, they all looked shocked and sickened by it, and then it cuts over and this upbeat 80's song is playing while they show a montage of them cleaning the bathroom. It just felt very odd they chose to play that kind of song as if they was having fun cleaning the attic or something.
Then the rock fight scene, the bullies up to that point had been shown as very demented and cruel, but then they just start a rock fight and again another random song plays then they choose to slow down the audio for the fat bully as he yells with the metal music playing. It felt like a scene from Diary Of A Wimpy Kid or something.
The scene themselves wasn't out pf place per se but the song choices was and didn't fit the moments.