Soap foam on Jackie's arm disappears, reappears, and then disappears again.
Jackie drops a cap from the cleaning agent bottle in the washing machine, but as she looks inside the machine, the cap is screwed on the bottle.
When Catherine and Jackie get together after Jackie's weekend with family, Catherine's shirt has dropped off, showing bare shoulder. Through the rest of the scene, the shirt is up on the shoulder, then back down, several times.