Video prompt: A traveler sits by a glowing campfire in a wide desert, surrounded by rock formations. The sky above is filled with bright stars, and the flames cast warm light across the sandy ground and the rugged, distant horizon.
Defect: Temporal Problem (if water is spilled then no water in cup in later frames)
Explanation: The background shows a time-lapse of stars and the Milky Way, while the  bonfire fires at a normal, steady pace. This mismatch in time scales is unrealistic, as both the background and foreground would naturally follow the same time flow if they were filmed together.