When I sending ##Cc 11 (0;127) , with my midi conroller , raise and fall time doesn't works.with external switch it works.
Interesting. What are you sending exactly? First #CC11=0 and then #CC11=127 in quick succession? In that case, maybe you could try simply sending 127 when you want to go to the morphed state, and 0 to go to unmorphed? Just a guess, but it might be interpreted as a really fast swipe of an expression pedal from 0 to 127 if you send both values.