7AT up shifting 4th to 5th blip
 

Occasionally, when I up shift from 4th to 5th, the throttle blips for a slight moment. I'm trying repeat this but it is very random. It usually happens when I'm in 4th, about 40MPH, ~3K RPM, 35% throttle. Hit the paddle to up shift and the revs shoot up to almost 5K for a split second before it settles to 5th.

Just wondering if anyone else has experienced this or can explain what's happening here.

Mine ,on occasion, does that on the first 4th to 5th shift of the day,when the car is cold. After that it shifts normal. If yours does it all the time I would have dealer look at it.