Continuity mistake: In the opening of the movie, when Rusty and Danny are flying back to visit Rueben, you see them boarding a Gulfstream G200. However, the interior shots actually show them flying in a Gulfstream 5 (probably the one on the ramp next to the G200 when they exit the aircraft).
Plot hole: To rig blackjack card shuffling machines to make the dealer bust and everyone else get 20 or 21, its success would depend entirely on knowing the exact number of people at the table at that time. Perhaps the filmmaker is assuming all seats at the high-stakes blackjack tables would always be filled during a "soft" opening, but that seems extremely unlikely.
Plot hole: The rigged dice, while undetectable, wouldn't necessarily work. While they have the ability to turn the dice they still don't know what number the dice will land on and which way the dice will roll when triggering the lighters. Granted they can keep someone from losing by triggering the dice, they can't always make someone wins. And most of the bets that were placed (Rusty's Snake Eyes bet) are 1-roll bets, i.e. if you don't hit on that roll, you lose.
Plot hole: When the earthquake is simulated by the cutter, and the people are winning, when Danny and the whales go to cash their chips in there are many many people running to cash their chips in. The discrepancy is that everyone was evacuated due to the evacuation plan, how did all of those people have time to cash all of their chips in before Bank watched everyone go out of the door? Just seems impossible that half a billion dollars would be paid out to that many people in like a few minutes. I understand it's a movie and things are fast tracked, but it made no sense.
Continuity mistake: When the system is rebooting, during a camera pan across one of the craps tables, the printed graphics on the felt are reversed and backwards indicating the film was likely reversed to keep the direction of motion.