Continuity mistake: When the mutant moths are first seen, their eyes glow in sinister red, but in all subsequent encounters in this episode, they have blueish eyes.
Continuity mistake: The Titan Communicators' lids depict the Titan's logo: a white T in a black circle, encased by a yellow rim. When Robin calls up the other Titans after recovering from his paralysis, the lid of his com device has a black T in a rimless yellow circle; later it has the standard design described above.
Plot hole: During and right after Cyborg's, Raven's and Beast Boy's fight against the mutant moths on the bridge, they contact Robin via their communicators. On at least two occasions, when their faces are seen on Robin's com and the main computer screen, the members of the trio appear not to look onto the screen of their own communicators, but at a separately mounted camera somewhere nearby.
Continuity mistake: When Kitten makes Robin lead her onto the ship, Starfire is crush-gritting her teeth, then she slams her fist onto the hood of the car on her right side. When she skids into the picture, the car in question is a red sedan, but when she hits it, it suddenly is Kitten's pink Rolls Royce, which was standing in front of her (and slightly to the left) just moments before.
Chosen answer: It is located in California, as shown in "Teen Titans: Trouble in Tokyo". Possibly San Francisco as seen in the comics.
MasterOfAll