During the 2nd episode that aired on the 24th, one of the action scenes had the stunt actors' wires clearly showing. Right after the mistake, ads and previews for other shows ran for 10 minutes while an apology scrolled in the bottom for the break in the broadcast. 

However, after the show came back on, the show went off air again around 10:15 PM KST for about 15 minutes. The preview to other shows aired once again on repeat, but even when it did come back on, the show kept having errors. The show forgot to edit out wires again, and the green screen aired instead of the CGed scene. The show cut off abruptly at 10:38 PM.

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tvN apologized and said, "We are apologizing for the delays in tvN's Saturday-Sunday drama 'A Korean Odyssey'. The 2nd episode of 'A Korean Odyssey', which aired at night on the 24th, had delays in editing and the broadcast was not done well. We apologize sincerely for causing concerns, and we will do our best that this does not happen again. We will be airing the finished 2nd episode that did not air on the 24th. The staff is working hard starting from the filming to the details in editing to express the special effects of a demon. We tried to finish in the short time, but the crew's passion ended up causing a broadcast error. We will learn from today's mistakes to create a better broadcast."

Did you watch the episode?