The kleptomaniac and the jeweler enter through a door on the right-hand side of the room. In the next shot, they are standing on the left side on the room, and the objects on the shelf behind them have changed position. The shot in which they enter is flipped (as evidenced by the buttons on the actors' clothes).
The monk drains his wine glass. When he chases the maid round the table in the next shot, it is half full.
The same witches fly past the screen several times. At certain points, the same witch appears on screen twice at the same time.
The skeletal horse-like creature wandering around during the Sabbath clearly is being moved about by a couple of stage hands, hidden under the blanket that covers its "body". The feet of the crew member at the front of the monster are visible in one shot.