Factual error: When it's 00:00 on January 1st, it's not night in Sydney, it's 11 AM. When they 'reveal' stuff at the end of the movie, and they show that things happen exactly at 00:00 in the night in London, it can't possibly be dark in Sydney, Australia.
Suggested correction: It shows that Sydney is at dusk and is becoming dark, so around 5pm-6pm-ish, not 11am during the day.
Character mistake: When Dylan answers his phone asking "Where are you?" assuming it is the Horsemen, it is revealed to be Thaddeus telling him where he left him 18 months ago, referring to being framed at the end of the first movie. The first movie ended with Thaddeus being framed one day after Mardi Gras, which would have set the first movie in late February or early March. The events of this movie take place days before New Years Eve in December. The two events are closer to 21-22 months apart, not 18 months. (00:29:45)
Suggested correction: Thaddeus says "right where you left me, 18 months ago." Thaddeus could have been referring to how long he has been in prison following the transfer after a conviction, not the time since the cell scene in the first movie.
