Software problems of the 2021 Tesla Model Y

On multiple occasions we have lost communications with the vehicle through the Tesla phone app. The problem exists for three different phones of two different models. We have usually been able to re-establish communications through the Tesla procedures, but not always. On all but one of those occasions the vehicle was stationary and we were able to use a key card to continue. But on one occasion, while making a u-turn on a side street, the car just stopped moving, partially blocking the street. We had lost communications with the phone app. After recovering with a key card we went straight to the dealer. Examining the software, they claimed that I had hit the 'park' button while moving. First, I would have had no reason to do so. Second, I know of no vehicle that would not block any attempt to enter park while moving. Third, it killed all communication with the vehicle, while moving, leaving it stranded in the middle of the street.