When Fives, Jesse and Hardcase approached Rex to inform him of their plan, Jesse is standing to Fives' right while Hardcase was on his left in one shot. In the next shot their positions were swapped.
In the last scene, the markings on Jesse's helmet are missing in one shot.
In the last scene when General Krell is telling Rex that Fives and Jesse committed treason, Rex's shoulder plate doesn't have its weathered blue marking, but rather a white regular plate.
In the flight scene with Fives, Jesse, and Hardcase, Jesse expresses his discomfort, but when Fives replies, he says "Easy, Hardcase, don't get an Itchy trigger finger!"