We had a similar issue 2-3 times. Cannot replicate it. First time thought I might have pressed the key but the second and third time it was clear it was doing it on its own. Sometimes the suspension also adjusts. I am in 2019 Prestige.We have had a 2019 eTron SUV purchased new in late 2020. I have had 3 instances where I have been loading groceries into the back of the car when the rear hatch unexpectedly and spontaneously starts closing. And when it hit me, doesn’t stop unless you exert a lot of force (like lifting a 50lbs bag of potatoes). Although it does stop of you resist hard enough, it doesn’t return/ retract to the full open position...it stays where you stopped it and you have to manually push it back up. The last time this happened I had the key fob in my front pocket and may have inadvertently pushed the lock button against the bumper as I leaned in. But still, I would think that the hatch door would stop or retract as soon as it encountered minor resistance or obstruction. Anyone else experience this? Thanks!