The Hong Kong Kowloon Treasure Murder Case File 2 - S1-E2
Other mistake: Miyuki calls Kindaichi at 9:48 AM. Hearing the pink dolphin hint, they run to the Kowloon Palace statue. When at that location Saki shows him the picture, the cell phone says it's 15:24. Too much time elapsed between the two moments. (00:17:00)
The Hong Kong Kowloon Treasure Murder Case File 2 - S1-E2
Other mistake: When Saki shows the picture of Ran's butt, the photo is taken from the right of the girl. In the scene during the previous episode, Saki was standing on Hajime's left, and he could never take that shot from that angle.