Stops driving while in drive, just revs up?

The transmission was very recently replaced in my SUV listed above. It drove fine for a couple of days. Then one day it just stopped driving forward while driving the vehicle was coasting. When pushing in the gas pedal the vehicle would remain coasting and the engine revs up without actually propelling the vehicle anywhere. I can turn the vehicle off for 1 minute then restart and am able to drive perfectly for a short distance before it happens again and again and again. Help!