Continuity mistake: When Mother Mae-Eye beds the Titans down in the pie plate, we can see the cushions being close together, forming a closed line. But when Mae-Eye says good night to each Titan in turn, the cushions behind each Titan are isolated from one another.
Continuity mistake: After Mae-Eye is banished back into the pie, the Titans assemble around it to ponder its fate. In the shots where we can only see their feet, they are positioned (clockwise, starting at 1 o'clock): Beast Boy, Starfire, Robin, Cyborg, Raven (who takes Silkie's place). But when we see their faces from the ground up, their positions are (taking the new perspective into account): Beast Boy, Robin, Starfire, Cyborg, Raven - on the whole meaning that Robin and Starfire switch places from one cut to the other, and back again.
Continuity mistake: Hot Spot and Wildebeest get captured by the Brotherhood of Evil and flash-frozen as battle trophies. In each instance where they are seen afterward, the two are seen standing in different stances.
Continuity mistake: When Gnarrk attacks Dr. Light's amplification machine, the wrench Cyborg threw at him has suddenly grown in length. At first his fist encloses the whole grip, but a minute later it is long enough to be used as a club.
Continuity mistake: Season 5, episode 7, "Hide and Seek": Whenever Raven tries to contact Robin and Beast Boy answers the com, the background on the com's screen always shows daylight even when Raven calls up at nighttime.
Lightspeed - S5-E8
Continuity mistake: When the HIVE Five corner Kid Flash in the museum, See-More activates his laser eye, which is red. But one cut later, when Jinx walks up saying "you're a little slow", his eye has its standard vision coloring again. And before the commercial break See-More puts his left hand to the visor switch, but after that he has his right hand up.
Lightspeed - S5-E8
Continuity mistake: When Kid Flash intercepts Gizmo's shop-lifting, Gizmo was walking towards the exit with his shopping cart. But after Kid Flash has deposited Gizmo in the cart, he pushes it on towards what would be the back of the shop, away from the entrance. But then Gizmo bursts out of the entrance into the parking lot beyond.
Continuity mistake: In the shot immediately after Beast Boy says "Uh guys, I think they're know we're here", where the lizard men are entering the scene, Starfire is in her normal sleeveless outfit. In the shot immediately before and after this, she's wearing a full suit of Tamaranian armour. (00:18:05)
Continuity mistake: Pantha, mistaking Cyborg for a competitor, grabs him, lifts him over her head and begins spinning him. In the shot where she is briefly seen from above, she uses only one hand, but before and after that she uses both hands to whirl him around.
Continuity mistake: When Raven is ambushed by Kyd Wykkyd and Psimon, she looks at Psimon over her right shoulder (since Kyd Wykkyd sits on the canopy in front of her). But when we see the outside of the pod, Psimon hovers in the air to the left side of the pod; he even casts a glance over his right-hand shoulder, i.e. to Raven's own left side, while she keeps looking to the right.
Continuity mistake: Kyd Wyykyd gets overpowered by Jinx and is frozen along with his compatriots lying in a heap. But later on, when the Titans inspect their flash-frozen trophies after the battle, Kyd Wykkyd suddenly stands all alone by himself (top shelf, far right).
Continuity mistake: When Kid Flash and Jinx arrive to give a helping hand, the remaining H.I.V.E. Fivers stare at her, aghast about seeing her on the heroes' side; Billy Numerous even points at her. Before (when Cyborg is slammed into the stairs) and after (when Kid Flash races off into the fray) that particular shot, however, the H.I.V.E. Fivers' stances and expressions just remain the same.
Continuity mistake: In the scenes where Mas sticks out his tongue at Cinderblock and when he starts feeling around for Menos at the Brotherhood's base, the plus sign on his left ear and chest, respectively, are painted black instead of white.
Continuity mistake: Más y Menos figure out how to use Professor Chang's Cryogenic Machine to unfreeze their fellow Titans and do the reverse with the opposition. But the few times where they are seen actually activating the Freeze option - Professor Chang and his assistants, and later the HIVE Five -, they push a different button in each instance.
Chosen answer: It is located in California, as shown in "Teen Titans: Trouble in Tokyo". Possibly San Francisco as seen in the comics.
MasterOfAll