Continuity mistake: When James is taking pictures from a car as men are entering a hotel, in the shots of him head on he is using a Canon EOS camera with a 70-200mm white lens. In shots from the side he is using a Nikon camera with an older Nikon lens. (00:27:35)
Continuity mistake: In season 1 it appears that Teresa meets Brenda when her son is a young child but in season 4, Teresa has flashbacks that show her in the delivery room with Brenda having her son.
Continuity mistake: Camila is walking down the sidewalk in high heels in the background trying avoid the Mexican Army. In the next frame in a closeup she is running barefooted. (00:13:00)
Factual error: When they deliver the drug and guns to the reservation, the car James is driving, has an Arizona license plate on the front of the car. Arizona does not issue plates for the front, only one plate for the back of the car.
Continuity mistake: When James meets Camilla at the night club to discuss that Teresa successfully ran the drugs, he sits down and lights a cigarette. He takes about two puffs and the scene flicks to Camilla. When it flicks back to him, he is taking a cigarette out of his pack as if it was the first time.
Factual error: When they're traveling to the farm to rescue her friend, (when a drone is filming from above following the truck down the road) there is light snow on the ground. Throughout the series in different parts, when they speak they're blowing mist/fog from it being cold. It isn't cold, snowing or any fall leaves in Mexico. Nor do those things hardly ever occur in southern Texas either.