automatic gearbox fault

Hey, Sometimes, after a fast acceleration the automatic gearbox will not go out of its current gear. I need to restart the car and then it behaves normally. (This problem only appears if i accelerate quick.) Do you guys know what the problem might be? And how to fix this issue? Thanks in...

Can anyone advise why my GLE 2019 auto petrol when revering intermittently slams into park so harsh it feels like I have been hit from the rear. The garage say they can't find anything. It's done less than 14k miles and done it since new. Thanks Lee