When Walter uses Ralph's tablet to message Toby, the time stamp on his message is 10:32 a.m.. The time stamp on Toby's reply a moment later is 10:30 a.m..
When Walter gets back in the truck to drive onto the tarmac he pulls away without closing the door. When the camera angle changes the door is closed. The camera then moves inside the truck showing the door open again.
Some say Walter is benched on suspicion of marital fraud. His wife Happy would be under the same suspicion but she is not benched. This is incorrect. Happy is a U.S. citizen and Walter is not, therefore the reason he is benched and she is not.
The FBI agent fires a single shot to escape from the trailer. When he exits the trailer, the slide on his pistol is open, indicating an empty magazine. No on-duty FBI agent would knowingly carry a weapon with only a single round of ammunition in it.
All the characters repeatedly mispronounce the city name "Altadena" as "Altadenia." The city's name was coined from the Spanish "alta" meaning "upper," and "dena" from Pasadena.
Team Scorpion repeatedly refers to the bug being "downloaded" from the node to the server. The bug was sent from the node to the server, meaning it was "uploaded" to the server, not downloaded.
The ACN producer says she'll be working "long after the Electoral College goes to bed". The Electoral College does not meet until five weeks after the election so it's doubtful she'll stay awake until then.