Continuity mistake: Tim crumples up the piece of paper with Caleb's address and then hands it back to Lucy, uncrumpled. (00:07:32)
Casualties - S2-E14
Plot hole: When Bradford and Chen arrive at her apartment to see the damage her newly adopted dog did, she discovers the dog ate her roommate's varsity jacket, but she had to turn the doorknob to open the door; there is no way the dog got into that room if the door was closed.
Warriors and Guardians - S2-E4
Other mistake: The driver in the blue Mustang (Osito) drives past Nolan and Harper, then makes a u-turn and drives past them again, to Nolan and Harper's left (same direction he came from), but when Nolan and Harper go to chase him, they turn right instead of left. (00:31:15)
Answer: Window tool.