Other mistake: Athena Carter (Sgt. Grant in her younger years) takes Officer McCluskey to the armored truck. She has her finger not on the trigger, but still fires off a shot (without recoil). Muzzle flash is a single frame. (00:21:14)
9-1-1 (2018)
1 other mistake in Reentry - chronological order
Starring: Angela Bassett, Peter Krause, Aisha Hinds, Oliver Stark
Continuity mistake: When the patient in the ambulance starts to heave, Chimney quickly grabs a barf bag in which the patient vomits. In the following shot, the barf bag is still empty. (00:42:45)