on march 21, the broadcast of episodes 11 and 12 was peppered with incomplete cg editing and visible production notes such as "darken windows more" and "erase all frame outlets". in one instance, color bars were also shown in between two of the scenes. sbs later issued an apology, stating that "there were various cg scenes in the episode... however, they were aired without the completed cg work, and we apologize to the viewers for the accidents." in its statement sbs also apologized to everyone who has been working on the show, and stated that they will do their best in filming and editing in the future. the oversight highlighted the tight filming schedules in the south korean broadcasting industry, and followed a similar incident in tvn's "a korean odyssey" where there were delays in removing the stunt actors' wires and processing the computer graphics.