I have been noticing since I started using morphing via the remote preset switches (no external pedals involved), that it is quite often the case that morphing occurs in a "discrete" way, i.e., that the morphed state of the preset takes place instantly when pressing its corresponding remote switch instead of appearing smoothly, in a "continuous" fashion. Sometimes morphing takes place as it is supposed to do, but sometimes it does not. In these cases, pressing the corresponding remote switch has a similar effect as that of changing from one preset to another, i.e., an instant sound change. However, reverting from the morphed state to the normal state seems to be working well always, with its smooth transition back to the normal state.
I might try to investigate whether the instant, non-smooth morph behavior takes place only with specific presets. But it is my impression that it happens just randomly ... Any clue? Thanks in advance !!