pittrek said:
Correct, that’s the thing I’m searching for. Reason : I have a youtube channel where I compare various versions of different Trek episodes / movies. So if any of you guys could upload somewhere the said segment I’d be grateful

Oh, I see. You could recreate it quite easily because the error is only a visual one: a shot of Sulu is incorrectly repeated, but the audio track is correct, so all you’d have to do is swap the shot to make your comparison.

http://trekcore.com/blog/2016/06/one-more-change-in-the-new-star-trek-wrath-of-khan-directors-cut/