Midori no chikyû wa makasetoke - S1-E2
Other mistake: Gai and the rest of crew are watching and old Gekigankar episode. The timer on the right corner of the tape goes from minute 49 to minute 52 between shots in the span of a few seconds (with a continuous audio in the background and dialogue between characters in the foreground). Some of the shots in the rest of the episode Miss the hour in the corner at all, and there's some back-and-forth with time (even if one can assume in that case they switched episode). (00:12:50)
Midori no chikyû wa makasetoke - S1-E2
Audio problem: In the hangar scene at the beginning, Goat is talking to Akito. Seiya Uribatake in the background is arguing with his fellow mechanical worker about the reparations to the Aestivalis. The conversation happens in the back of the hangar and it is meant to be strong background noise, annoying enough to prompt Goat's reaction, but in the English dub it is so strong that quite literally most of the main dialogue is nearly inaudible because of it. The dubber also adds a surprised/scared "waah" at the end when Goat cuts him off, but that is incredibly delayed compared to the reaction of the character on screen. (00:02:35)
Midori no chikyû wa makasetoke - S1-E2
Continuity mistake: When Gai inserts the disk in the player, in the close-up other disks are close to it on the table, but in the wider shot nothing else is on the table but the player itself. (00:10:50)
Midori no chikyû wa makasetoke - S1-E2
Continuity mistake: Yurika throws a series of cans to Akito. They are all red in the side view, but in Akito's hands they are of three colors (red, orange, brown, light purple). (00:05:15)
Midori no chikyû wa makasetoke - S1-E2
Other mistake: When Yurika restarts the Nadesico, one of the screens pop up with a huge congratulatory "SAFATY ROCK OFF." (00:18:05)