In manual, pressing a key(s) places the note(s) and deletes what was there before.
In the automatic, every note pressed is added on top of the others. When I enter one of the real-time entry methods, I can enter notes on the first beat. When I enter Step-Time entry however, I can no longer hear any playback from musescore and no notes are entered. When I enter musescore after turning on the piano, and go to a score, I can hear playback just fine in the instrument I've selected (pressing keys on the piano gives a sound on the piano and from musescore, obviously no notes get written down). Hello! Having same problem with Casio CTK-2080.