Audio problem: While at the range, Jamie takes Frank's revolver to the line and fires it. The last 2 shots you can hear the casings hitting the ground, but not on the first 3 shots. The last 2 shots are from another camera angle. Revolvers don't eject the casings, so we shouldn't hear them landing.

Continuity mistake: While Danny and Baez are questioning Damian about Mason's whereabouts, Damian's right handcuff switches to the opposite way depending on the angle of the shots. Either the single metal bar faces up or the double bar faces up, which is quite impossible to change when it's locked around his wrist.

Visible crew/equipment: After Anthony drives the Porsche 911 into the garage, in the shot facing Erin and Anthony just as Jimmy gets into the car, the green T-mark, the red tape mark, and blue tape mark are visible on the floor.
Factual error: It's said the illegal immigrant from Venezuela has a new born child. Yet they're still talking of deporting him. Impossible as that child was born here, she/he is an automatic citizen and can represent the whole family in getting citizenship as the law dictates.
Suggested correction: No, it's not impossible. It's a lot more complex and there's no guarantee for immediate citizenship for the parents. There's not even a guarantee a child will be given residency in the US until he or she is old enough to live on his or her own. However, I missed the part in the episode that said anything about the child being born in America, they just said he had a "newborn."
Other mistake: Jamie races to the patrol car after witnessing a car jacking with possible child inside. He flings the door open, gets halfway inside, and the car starts without him even being close to turning the key in the ignition. (00:04:00)