In Piper's conversation with her mom, her strap goes back and forth between sticking out, tucked away, then visible again.
In final minutes of the show when Gaitok is driving Sritala she is behind the driver seat in the close up shot and when cuts back to the car she is behind the passenger seat as they are driving off.
When the Ratcliff Family is on the boat and get their phones back, Victoria's legs are crossed in alternating positions from shot to shot.
When Rick is floating after being shot it's possible to see SCUBA diving equipment under the water in the left side of the frame.
When Loche finds the blender with the found looking pong-pong fruit in it, there is no way anyone, especially a fastidious teenager, would have not at least rinsed out the blender. This is more so the case since Tim had previously declared that the coconut milk was bad.