Hey guys not sure If anyone has ever had this issue but i was sitting at a red light and the car made a thump noise as if it was shifted into neutral/park and a wrench came on the screen and i couldn't move car it wouldn't rev above 1500rpm(thought i blew the trans). I shut the car off and restarted and it seems to be driving fine now. I shifted thru all 10 gears & no issues I only have 2800 miles on it and this is the first issue I've had with the car. Maybe torque converter not sure.

 

No torque converter in DCT 10 speed......I guess that's what you have??

If under warranty return it to the dealer and let them diagnose and fix it......GOOD LUCK!!