Factual error: An FBI briefer is talking about the hijacking of a passenger airliner. He calls it Flight 6175. The airplane has 6175 stenciled on the nose. Those are usually the last four digits of the airplane serial number, used by maintenance and dispatchers to designate a particular aircraft. It is not the flight number of any given trip. (00:04:45)
Factual error: Kai checks out his phone repeatedly and the date indicated is "Wed, Aug 22." Just a scene after, Jenny is shown with an August 2019 calendar in the background. August 22 2019 was a Thursday, not a Wednesday. (00:06:00)
Welcome to Hotel del Luna - S1-E1
Factual error: The dead policewoman removes the bullet that she was shot in the head with. The bullet appears to be completely intact and undamaged as if never fired. Real bullets that have been fired into something or someone do not appear like this. (00:36:30)
Factual error: Will is asked by Jai to place his wrist watch - which is filled with explosives - against a wall. He does, and it somehow sticks to the vertical concrete wall. An adhesive back would have been noticed by Will, as it was against his skin on his wrist. Not to mention that an explosion in a contained space that small would have deafened them both, or worse. (00:35:05)
Factual error: At the end when Skeksis enters the crystal chamber, in the overhead shot you can see 22 arcane symbols around the crystal when there should only be 18, one for each exiled skeksis. (00:45:53)
Pride Parade - S5-E3
Factual error: Nandor manages to fly up to space, then loses control and falls back to earth in a fireball as he reenters the atmosphere. But objects reentering the atmosphere only get hot because they're generally travelling at immense speeds, 7-12 kilometers per second. Nandor just floated straight up, then falls straight back down. When Felix Baumgartner parachuted from the edge of space his maximum speed was about 1,300 km/h, and he didn't catch fire.