The Getaway - S2-E12
Character mistake: When Agent Vaughn's identity is discovered while on the date with Sydney, it's matched via his driving license, gym membership card, and library card. The driver's license has his name spelled incorrectly (Vaughan instead of Vaughn). (00:24:02)
Continuity mistake: When Sydney takes Danny upstairs, her hair is tucked behind her ear. When she turns to face him, her hair is no longer tucked behind her ear.
Other mistake: When Jack logs into Lauren's e-mail account, for one, the birth dates on Lauren's IDs say 1959 and 69 (which would make her either 33 or 44). Plus you can see (possibly) real e-mails from actual crewmembers, for example at the bottom you can see "FW:Photos for Alias Ep.#315." (00:10:57)
Chosen answer: It does sound overdubbed, but there was no change in the organization. UCO is United Commission Organization. There are signs when Patel is coming that say UCO so obviously it wasn't changed.