The Night of Miguelito's Revenge - S4-E12
Continuity mistake: When West and Pike pour a drink for "absent friend" Arte, the glass is placed between a newspaper and a silver dish. In the following close-up, the paper and dish have disappeared and the glass sits alone on the table. (00:49:50)
The Night of the Raven - S2-E3
Revealing mistake: When the marshal opens the train's rear door and comes in to arrest Lana, you can see wrinkles in the "sky" outside. It's really a painted cloth backdrop. (00:48:40)
The Night of the Underground Terror - S3-E19
Factual error: The episode opens in New Orleans during Mardi Gras, circa approximately 1873. We hear a jazz band playing "When The Saints Go Marching In" although the song didn't emerge in a recognizable form until the end of the 19th century. (00:00:19)
The Night of the Cadre - S2-E26
Continuity mistake: After a bomb explodes near West, when he stands up, there is a rip midway on the seam of the seat of his pants. In the subsequent fight scene, the tear is no longer visible. (00:28:25)
The Night of the Deadly Blossom - S2-E25
Plot hole: There are two rockets to be launched. The right rocket launches. It is important for the plot for the remaining rocket to explode without being launched. Without explanation, the left rocket just falls off its ramp, lands on the floor and shortly explodes. (00:46:10)
The Night of the Deadly Blossom - S2-E25
Continuity mistake: In the final scene of this episode, the train is shown at twilight. When Gordon leaves the private box car, it is pitch black outside. The last shot of the episode shows the train in twilight again. (00:47:10 - 00:47:45)
The Night of the Cadre - S2-E26
Continuity mistake: The bird flies and lands on two books. To the right of the books is a red glass bottle with a frame document behind it. The next shot of bird shows it atop the red glass bottle which is now to the left of the books, away from the framed document. (00:01:10 - 00:02:45)
The Night of the Colonel's Ghost - S2-E24
Continuity mistake: When West ties his horse to column, there is a boarded up entrance to the left with one wooden plank at a 45 degree angle in the middle. When West returns to his horse to leave, the plank is missing, and West rides off without having to untie his horse. (00:03:05 - 00:05:30)
The Night of the Surreal McCoy - S2-E23
Continuity mistake: West enters the portrait and is stretched out on his back on the ground. As he is walking to the saloon, his entire backside of his suit is covered in dirt. West becomes dizzy, and as he is falling to the ground, face first, we see that the entire back side of his suit is clean. (00:35:50)
The Night of the Surreal McCoy - S2-E23
Continuity mistake: During the fight, the candle on the left tilts to the left. Next shot, it is perfectly vertical. West knocks a thug into the bureau, and left candlestick tilts to the right. After the fight is done when West is opening the door for Gordon, the candle is inexplicably on the floor. (00:12:45)
The Night of the Surreal McCoy - S2-E23
Continuity mistake: The second thug to be knocked-out is on the floor (to the left of screen) and has fallen on his left-side with his left leg slightly bent, and his right leg cannot be seen. When Gordon enters the room, this unconscious thug is now positioned face down, arms extended over his head, and both legs stretched out. (00:12:55)
The Night of the Surreal McCoy - S2-E23
Continuity mistake: The last thug to be knocked-out is on the floor by the fireplace with his body at an angle to it. When Gordon enters the room, this unconscious thug is closer to the fireplace, and his body has changed position to be parallel to it. (00:12:55)
The Night of the Deadly Bubble - S2-E22
Continuity mistake: This scene opens showing the personal train car at twilight. When West opens the door to leave (one minute and 10 seconds later), it is pitch black outside. (00:06:15 - 00:07:25)
The Night of the Brain - S2-E21
Continuity mistake: West is lying down while in hand shackles. When Voulee turns her back to him, he releases a gadget from under his sleeve by his right wrist. While the camera closes in and out of the device to free him, West's shirt sleeve by his wrist keeps appearing and disappearing. (00:38:35)
The Night of the Brain - S2-E21
Continuity mistake: The opening of the last scene is of the personal train car in the dark night with very little moonlight. The closing scene of this episode shows the train again amid the night sky which is a much lighter beautiful blue. (00:47:45 - 00:49:15)
The Night of the Brain - S2-E21
Continuity mistake: The arms of the West chess piece are at different positions each time the piece is shown. (00:00:05 - 00:07:45)
The Night of the Brain - S2-E21
Continuity mistake: When Braine fires one of his mini-rockets at West, West falls at an angle in front of the bureau's left side. The next shot of the fallen West has him on the bureau's right side, perpendicular to it. (00:20:50)
The Night of the Vicious Valentine - S2-E20
Revealing mistake: The red-headed villain falls face first into the wedding cake. The front of his face is covered with cake and icing. West "punches" him on the face - but punches are not real - that is why West has no cake or icing on the fist that "punched" the face covered with cake and icing. (00:46:30)
The Night of the Tartar - S2-E19
Other mistake: As the coach is entering the courtyard, Count Sazanov and Anastasia are standing side-by-side. In the space between them, one can see by the gate's entrance, a car driving from right to left. (00:22:15)
The Night of the Tartar - S2-E19
Revealing mistake: When West opens the wall safe in the personal train, there is no locking mechanism shown on the opened door. Without this, the door of the safe could just be opened without rotating the combination lock on the outside. (00:01:50)