When Hawkins and co are doing the bank heist, you can see Diaz breaking the glass and hear the glass shatter, but when the camera pans out and then back in at Peralta the door is not broken. (On Peacock, time stamp 19:20)
Amy says the only celebrity she's ever seen in real life is Paul Shaffer, however she's encountered multiple celebrities during cases, most notably Adam Sandler when she and Jake were undercover at an auction.
When Brenda yells at Jake to, "keep wagging back there," and Jake replies that he is wagging, Jake has his hands on his hips in the rear shots but out in front of him on the forward shots.
Lt. Hawkins is not wearing her commendation bars in the proper method. NYPD regulations require the American flag bar to be worn as the highest bar on the "medal rack." Also, the majority of commendation bars she wears are not medal bars issued by the NYPD.
Captain Holt wears his Commendation breast bar above his World Trade Center Breast Bar. When the WTC bar is worn, it is worn above all other medals, but below the American Flag bar.
In the bar with the renegade cops, as Jake gives the toast "Let's get sloppy!", the guy sitting closest to where Jake and Rosa are standing appears to have forgotten he's on camera: he smiles inappropriately, he almost looks into the camera and he only halfheartedly raises his glass.
When Charles slaps the cup Gina was drinking coffee from out of her hands it is obvious that it was empty from the noise it made when it it the ground.