Code pulled on mine:
P0841 - LR Pressure switch sensor circuit
P0731 - Gear ratio error in 1st
P1790 - Fault after a shift
P1776 - Solenoid switch valve stuck in LR

Odd things it's it's only ever the 2-3 shift that has ever felt harsh. Tranny shop replace the solenoid assembly and cleaned the valve body. Car has been fine today and I did a fair bit of driving so it does seem to be the solenoids that were the likely culprit.

Hope that helps.

Greg