Engine Shut Off Without Warning problems of the 2019 Audi A7

2019 Audi at a stoplight, or stop sign, where there is even the slightest incline, after my 2019 Audi A7 has come to a complete stop, and the engine shuts off, when I remove my foot from the brake to engage the gas pedal, the engine does not engage immediately and the car shoots/rolls backwards. The rollback is significant enough that the rear camera turns on. Because of the lapse in time before the engine engages again, I have no control over the vehicle when this happens and am unable to keep it from shooting backwards I've spoken to my sales representative and Audi's customer service, and have had the vehicle looked at by technicians at both the fairfield and danbury connecticut Audi locations, and have not been given a solution to the problem. In fact, I have been told on several occasions, and have saved voicemails from Audi service, that all their vehicles are doing this because of the double-clutch, that it is "completely normal," and that I would just have to adjust my driving. Because I have no control over the car when it does this, and Audi is not resolving the issue for me, this is going to leave me open to liability should the car roll/shoot back into any vehicle stopped behind me, or person who may walk behind my car when I am stopped. I am frightened to drive this car for fear of injuring or killing someone, and haven't driven the car in over a month.