Another problem for us on trans brake-HELP

Bands WERE adjusted when we installed the new valve body,It has a total of 48 passes on it and the intermittent action of it has happened twice once in the 3rd round (red light) once in the fifth round (red light) the transmission was at 136 degrees when this happened-See how anal we are,when a problem happens we document the time,Temp and place it happened,136 degrees is NOTHING to a trany so it's not heat sink on the solenoid and both times had voltage to the stud going into the trany,In the pits it would work one time out of 6 tries that's just not right--Steve