Continuity mistake: At the road block, as Art is talking to Raylan and Rachel about being the department that finds Drew, they all agree and start walking to their vehicles. The next scene shows Drew and Elle May walking through the woods and stopping to see the roadblock. It shows Raylan, Rachel, and Art standing back in a group talking again. (00:10:23)
Continuity mistake: Ava spills Coke on her blouse and creates a big circular stain. As she walks to the bathroom, the stain becomes a long narrow one. When she is leaving the pizza place, the stain is still narrow, but much shorter. (00:21:00 - 00:22:00)
Continuity mistake: In the scene with the horse trainer, the character has a wedding ring on, then doesn't, then does, and finally doesn't again. (00:30:40 - 00:32:50)
Continuity mistake: The first time Boyd speaks with Ava's uncle Zachariah, the door behind Zachariah keeps switching between open and closed between shots.

Continuity mistake: As Arlo Givens strikes Hunter Mosley with the hair clippers, the clippers are pointed upwards at first, but after the blows, they point downwards. (00:07:35)
Truth and Consequences - S4-E3
Continuity mistake: As Eve is taken out of the closet you can see the luggage table or chair flipped over and just a few seconds later it's upright. (00:29:24)
Continuity mistake: As Raylan sits down opposite the thug, who says "I just take orders", his gun is held vertically. Cut to a shot from the front and it's on its side. (00:25:00)