After Cindy is startled by the haunted stroller in the hallway, the shot cuts to Richard reading a book in the next room, implying that this is the same night, raising the question of how he didn't hear Cindy screaming.
Paige is wearing a different outfit each time the scene cuts to her doing different tasks like brushing her hair, making tea, and cleaning the house even though it's implied that this is all happening in the same day.
Paige turns around twice when the front door closes on its own.
Obvious shave stubble on Father Joseph's head, and it's not actually a receding hairline.
Tommy finds the ghost Morgan on the piano and although she's pressing the keys, no sound or music can be heard.
Obvious studio light is visible in the shot where the ominous tree is first seen in the backyard.
Paige is startled when she opens one of her boxes to unpack and finds a snake inside. She simply closes the box and takes it to another room, and it's never mentioned or brought up again.
Cindy complains to her father Richard at one point that there is an ominous and foul smell in her room. It's never mentioned again.
Paige tells Richard that the doorbell rang in her dream, but what actually happened was that someone was knocking.