Continuity mistake: When Sam is in the bathroom holding up two sample paint chips, in the first shot she's holding up the yellow in her left hand and the blue in her right hand, but in the next shot they've switched and are in the opposite hands, just as Jay arrives with the coffee.
All-New Halloween Spooktacular! - S1-E6
Continuity mistake: Wanda is spooked by the sight of Pietro transfigured into a corpse. He then asks her if she's okay; Wanda has one hand or both hands in front of her mouth, and they change position between shots too. (00:24:35)
Continuity mistake: When Miranda introduces herself to her friends at work, watch the woman with the cookie: her left arm's position and how the cookie is bitten keeps changing in every single shot.
True Crime - S1-E1
Continuity mistake: When we're introduced to Oliver, the people walking by behind him appear / disappear / reappear randomly with no continuity whatsoever.
Planes, Trains, and Automobiles - S2-E1
Continuity mistake: S2/E1 Planes, Trains, and Automobiles: Ashley smoked her cigarette down to the filter with no white cigarette showing but in the next frame there's white cigarette showing. (00:11:23)
Stego Search - S1-E7
Continuity mistake: Four people (a guy in a pink shirt, a girl in an orange dress, a guy in a blue shirt, and a girl in a denim skirt) stand up from a picnic blanket to go listen to a guitar player. However, in the next shot, the girl in the denim skirt and the guy in the blue shirt are replaced by a girl in a black dress and a guy in a green shirt, and they are never seen again.
Family Day - S2-E5
Continuity mistake: When Harry first picks up a water balloon and throws it, his hands are now empty. In the next shot, he has a blue water balloon in his hand. When he throws that one, you see it's a pink balloon being thrown.
Continuity mistake: When the boys are playing at Norman's father's apartment, we see a ball hit a lamp to the left of the sofa, denting the lampshade. We see the lamp fall and hear it shatter. Later we see the intact lamp back on the table.