When Evolver is against Dwight, towels on the floor disappear/reappear.
When Evolver crushes the guy under the car by lowering the jack, Evolver does so by pushing down the jack handle. This is not correct. The handle twists to release the pressure.
When Dwight is falling down the stairs, you can easily tell that it's a (much older) stuntman.
When Russell tells Kyle's mom that Evolver will be destroyed, she should have brought up the fact that he's evidence in a murder, among other crimes. She's planning on taking them to court anyway, and it's implausible to think that she would just let it be after that.
Near the end, Kyle and Jamie tried to save their mother and sister on the second floor. After being rescued, the three left the room, and then the evolver closed the door to kill the guy. How did the family did not notice that the evolver entered the room?