Transmission Not Go Into Gear problems of the 2015 Toyota Prius

This is an update to complaint number: 10809942. === I forgot to include this: *** besides the rolling backward problem I had, if one has a get-into-gear-and-go emergency, it is very likely that the car will not get into gear, you will not realize that, and when you step on the accelerator to go, the car will not move. Then you have to realize why it did not go and shift again. In case of an emergency, this delay may be critical.