Transmission Not Engage problems of the 2014 Nissan Altima

Previous complaints to my dealer regarding my car is the 'stuttering or jutting' of my vehicle while driving - at times almost violently. The cvt transmission had been replaced once within the first 6 months of ownership. On December 29, 2016 while traveling from mo to IL, while on I-44 traveling approximately 75 mph uphill with the cruise control set the car suddenly lost power to the transmission would be the best way I would describe it. The car suddenly started revving to over 6,000 rpms, the gas pedal would not react, it was if the car was in neutral and the gas pedal was revving the engine. The loss of ability to control the cars speed while going uphill on the expressway put us in serious danger. We were able to get over to the side of the road. The car was put into 'park' we waited a couple of minutes but due to our location on the expressway shoulder we knew we needed to get into a better sight of oncoming vehicles, it seemed as if they didn't see us until they were right near us, many trucks were unable to move over on short notice so when they pasted us at 70+ miles the entire car shook. When restarting the vehicle it would not engage into either 'drive' or 'reverse'. Roadside assistance was called, due to heavy volume they could not get to us for at least 1 1/2 hours, they deemed the situation dangerous and the missouri state highway patrol was called. When they arrived approximately 1/2 hour later the car would go into drive, but with extreme jerking and constant revving of the engine. Since the car moved they escorted us the 1 1/2 mile to the nearest exit off the expressway, while traveling downhill, just coasting the car would constantly jerk and the engine was revving. The car was towed back the 200 miles to our dealership. The car experienced 'transmission failure' and is currently having the transmission replaced again.