Other mistake: You don't have to look further than the name; the title of the series is "Knight's and Magic" instead of "Knights and Magic".
The Hong Kong Kowloon Treasure Murder Case File 1 - S1-E1
Other mistake: Throughout the episode, certain street signs ("Job&Piece", "Ocean Guest House") are used multiple times in different points of Hong Kong (for instance the establishing shot of the city, behind Kindaichi and his friends when they meet, during the bike chase).
Mystery of the Fearsome 100 Demon Empire - S1-E2
Other mistake: When Joho is looking at 'the crazy guy' praying under the dam, the racquets in his hand (assuming that's what it is) are misshapen. (00:10:15)
Other mistake: The first victim of the mask in the series falls back against crates that must be made of dry leaves, since all it takes is for the body to lean against them to utterly shatter them. (00:18:55)
Bright Eyes - S1-E7
Other mistake: SPOILER: Gambit's funeral is taking place in his hometown of New Orleans, as evidenced by the coffins being above ground (because New Orleans is at or below sea level). However, Gambit's coffin is oddly lowered into the ground.
Other mistake: In the credits for "Tests," the "created by" credits for the characters of Anarchy and Katana are swapped: Mike W. Barr and Jim Aparo are erroneously credited for creating Anarchy (when in fact they created Katana as part of the comic "Batman and the Outsiders" in 1983), while Alan Grant and Norm Breyfogle are incorrectly credited for creating Katana. (Grant and Breyfogle created Anarchy in issues of "Detective Comics" from 1989.)
Reign Storm - S1-E7
Other mistake: When King Koopa places the Bob-omb, part of the background is coloured in like its key. (00:03:20)
Other mistake: When Turbo-Jet steals the book, it is inside a glass case. Peter arrives, kicks him in the head and he drops the book. When the book lands on the ground, the glass case the book was inside shatters, causing pieces of glass to land on the ground, surrounding the book. A couple of seconds later, when Peter picks up the book, there doesn't appear to be any glass on the ground underneath the book, even though it wouldn't have been able to go anywhere else. (00:07:37)
Snow Place to Go/Dunce Upon a Time/Gems the Breaks - S1-E6
Other mistake: Snow Place to Go: In the extreme wide shot of the ice cracking, the ice at the left side of the screen is cut off. (00:05:45)
Speeding Is Dangerous - S1-E22
Other mistake: When Shine says, "I think I'm OK," his front tire is layered over the railway tracks.
Max's Bath - S1-E4
Other mistake: Max drinks some grape juice from the fridge, then when he takes the cup away from his mouth, the amount of juice in the cup is the same as before.
The Town with No Internet - S1-E6
Other mistake: After Abbie and Jan turn to look at the Alpha after fighting the vampugs, Jan breaks apart the broom in her hand. There is then a shot of Jan reflected in the Alpha's eyes, but her reflections are not backwards like they should be. (00:20:56)