During the Ratman segment, one of the interviewees has his first swear bleeped (as it is presented as a local TV news segment), but subsequent swears from him are not bleeped.
A piece of graffiti in the tunnel clearly says "2018" in the first segment.
In segment "The Subject" when Girl subject out from operation room you can clearly see a shadow of her head with attached GoPro camera. Later in mirror shape of her head is completely different.