Audio problem: When younger Dylan is talking with his father before he performs the stunt, Dylan tells Shrike he doesn't want him to go and Shrike says to him "Dylan, come on. We talked about this." As Shrike says "Dylan, come on", the shot is behind him, but his jaw doesn't move with the speech. (00:01:15)
Audio problem: When Dylan begins explaining the plan to infiltrate OCTA to the Horsemen, there is a wide shot where he says "OCTA's hosting the launch of the next-gen cell phone" but his lips don't move at the start of the line. (00:15:40)
Audio problem: At the OCTA launch, when Daniel calls security for the CCTV guard, the security guard finds the Evans Mental Facility wristband on his wrist, then the CCTV guard says "Hold on a second" but his mouth doesn't move. (00:18:10)
Audio problem: When the Horsemen are having their final checks at the science centre, just as Merritt is being checked, Lula is heard saying "I don't speak the language." Lula is visible in the background looking towards Merritt when she says this, but her mouth is not moving when she is speaking. (01:01:40)
Audio problem: Jack "hypnotises" Chase in the bar to make him apologise to Merritt and slaps Chase on the face to wake him back up again. Chase then says "Merritt", but his lips don't move. (00:49:00)
Audio problem: In the bar, when Chase is telling Merritt his ploy of distracting him while the other Horsemen screw over Walter isn't going to work, whenever the shot is behind Chase, Chase's mouth movements do not match the dialogue when he is speaking. (00:48:35)
Audio problem: When the Horsemen are at the science centre and are posing as doctors attempting to trick Allen, Lula says she did sent that e-mail and Daniel says "The other day, yes", but Daniel's lips do not move with the line. (00:55:10)
Answer: The only ones who knew the chip was fake were the Horsemen, no one else did. Walter did not know the chip was fake. The plan was to convince Walter that the chip was real so that they could lure him out of hiding with Walter attempting to kidnap and later kill them, and expose Walter to the public in doing so. They told the crowd after exposing Walter about the chip, because while it was a fake, they still had plans with it assuming it was real. If by "alert the FBI", you were referring to when Dylan gave the FBI director the evidence on Walter and Tressler, that was not the chip he gave to her, that was a hard drive containing all of Walter and Tressler's past dealings.
Casual Person