Other mistake: While Casey was holding the pin she would bump into things and fall in her house. OK that makes sense. However, when she reached the city, how was she walking down steps that are not really there? She should be floating in the air or something.
Other mistake: Captain Forsyth is looking at the dossier about The Gourmet Detective; the interrogation happens in the evening with everyone still dressed for the formal dinner, but the file was printed at 9 AM. There's no reason why the police would have printed that file at that time of the day. (00:23:15)
Other mistake: Maggie and the chef sleuth are watching the viral video. The article mentions that a four minutes outburst has been caught on camera, but the video lasts only 30 seconds, contains the full transcript and ends, no cuts, with her that grabs the camera. There's no room for other 3 minute and a half of footage. (00:26:00)
Other mistake: When Simon runs down the hospital corridor toward the end, attempting to catch Gordo in the elevator, many of the hospital employees and patients notice him running and watch curiously. But in the very next shot, where he slams against the elevator doors and shouts, none of them seem interested.