(at around 2 mins) In the beginning scene where The Creeper is in pursuit of the elderly couple driving, you can see a stunt driver wearing a regular baseball cap driving The Creeper truck. Then when scenes cut back and forth between the vehicles, you can see someone wearing a creeper hat.
In Chase and Laney's Introduction scene, they talk about the existence of 3 Jeepers Creepers movies, which suggests that the original trilogy is fictional in this universe. However, when the creeper leaves the barn we can see the harpoon with which he was killed in JC2 (2003) and when they enter the voodoo altar there are objects, photos and voodoo dolls of the victims of the original trilogy.
The first film was set in 2001. The Creeper returns out of hibernation every 23 years. He should return in 2024. This film is set in 2021 making the Creeper three years early.
The film supposedly takes place at night, but there are beams of bright white light shining through all the windows, at all times.
(at around 1h 3 mins) A character steps on a bear trap and had his leg shredded but somehow is able to walk around limping the rest of the film as well as walk up flights of stairs without any support.