Slot cancellation after pushback?
As is my wont, I was tracking the inbound leg of the flight I was waiting for on FlightRadar. On the app, I saw it line up for takeoff; then appear to taxi quite some way down the runway before turning back and sitting away from a gate before having another go about 40 minutes later.
The official explanation given by the crew on our departing flight to explain the late inbound arrival was an ATC issue. I was surprised the aircraft could apparently make its way to the front of the queue before that cropped up, and even more surprised it appeared to have trundled along the main runway some way before taxiing back. Is this a plausible explanation, or was I looking at a rejected takeoff?