Anyone have auto gearbox problems? My car slips upon up-shift from 3rd to 4th.

It feels like shifting in a manual car without releasing the throttle. The revs go up as if the gear went into neutral, before dropping and entering the next gear. This happens all the time, even if i upshift with the paddles and I am OFF the throttle, the revs still goes up before dropping and going into the next gear....

 

Sounds like a trip to the dealer is in order. I haven't read very many (if any) complaints about the slush box.