Heya,
sorry for the delay, but here's two quick videos ; It seems like its a combination of things, the wind or a slope to get it going and then it not stopping. Chocks, parking brake or manual brakes, with and without APU Power lead to rolling.
Hope this helps 😃
2024-11-09-23-29-07_qS5WmiO8.mp4
2024-11-09-23-25-34_uBDenYll.mp4