Weird. I looked up,the flight for Wed 18 Oct and it showed takeoff from 34L.
The QF926 on 19 Oct shows as taking off on 34R. But the 19th is Thursday is it not? So why is it showing today's flight against tomorrow?
Were there departures off 34L at the same time? Sometimes there are pavement failures which means aircraft depart in ways contrary to how they may otherwise.