2015 Infiniti QX60 engine problems

There is a very loud sputtering from the engine when I am stopped. It seems as though the car is going to die. No check engine light appears. I tried revving the engine in neutral to see if that would resolve it, to no avail. I just had my state inspection performed at the dealer less than a week prior to event. No issues came up at that time.

Tl* the contact owns a 2015 infiniti qx60. While driving approximately 40 MPH, the vehicle stalled. The contact had to turn off and restart the vehicle. The contact also stated that the failure previously occurred in december of 2018. The vehicle was taken to the dealer (pepe infiniti, 300 central ave, white plains, ny 10606) to be diagnosed, but they were not able to duplicate the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The VIN was not available.