The BBC was accused of a misleading edit of Donald Trump's 6 January 2021 speech two years before the Panorama sequence that led to the resignation of the director-general.
The clip aired on Newsnight in 2022, and a guest on the live programme challenged the way it had been cut together, the Daily Telegraph reported.
On Monday the BBC apologised for an "error of judgement" over an edited portion of the same speech that aired last year on Panorama.
The fallout saw the resignations of the BBC's director-general Tim Davie and head of news Deborah Turness, and a legal threat from the US President.
Lawyers for Trump have written to the BBC saying he will sue for $1bn (£759m) in damages unless the corporation issues a retraction, apologises and compensates him for the Panorama broadcast.
