When the crew is being busted in the vault only Nate, Elliot and Parker are present with the rope they dropped down with being pulled up. A moment later Moto is attempting to blame Sophie for setting him up and she is shown standing with the rest of them in the vault despite moments before being shown in the concert hall upstairs.
Sophie, while interviewing for a job with Alexander Moto, refers to a quote from Stalin, but misquotes him by saying, "one death is a tragedy, 1000 deaths is a statistic". The actual quote is "if only one man dies of hunger, that is a tragedy. If millions die, that's only statistics"
The violin has that is played by Hardison, which is supposed to be a Stradivarius, has a chin rest, which it was not invented in 1820 only.
Most keypads with combo locks only allow a few wrong attempts before an alarm is triggered or the system locks up. Yet Parker tried many combos and was never locked out.