When one of team has a chute that fails to open he falls to the ground much faster than the rest of the team whose chutes opened as expected. When he hits the water, everyone on the ground immediately runs to his aid, including Jessie who should still be up in the air hanging from a parachute.
Just before Selkirk deploys his sabotaged parachute we see a close up of him in freefall where we can clearly see he is missing his main 3 ring connectors, which means he has already cut away from his main in that shot.
After Swoop cuts away from his main to assist Selkirk with his malfunction we see a close up as he falls down to Selkirk, clearly his 3 ring connectors are still stowed which means his main has not even deployed at this point, yet we have just seen him cutaway.
When Nessip is practicing in the wind tunnel, being watched by the other members of the team, Jess Crossman is alternately shown with her red jumpsuit either fully on or tied around her waist. There does not appear to have been enough time elapsed for the configuration of her jumpsuit to change so often.
Right before the DC qualifying jump begins, a camera operator can be seen filming the crowd underneath the canopy. Although one could argue that he might just be filming for a news crew or making a documentary about the jump, the Panavision film camera he's clearly using is not suited for that sort of work.
Ty and his team were supposed to be landing and infiltrating the "DEA Building" in Washington DC. We know this building is supposedly 27 stories high as one of the agents in the building hit the button in the elevator for Floor 27. No building in DC is that high, with the exception of the Washington Monument.
When the 747 depressurizes, the pilots initiate a dive for an emergency landing. The airplane is shown from outside with its landing gear down. A pilot would never extend the landing gear at cruising speed, even during an emergency landing sequence.
The shot when we see Selkirk deploy his canopy that malfunctions is obviously reversed. He deploys with his left hand instead of his right and his cut-away pillow and reserve handle or on opposite sides to the correct position.