Hello,
i am using frinika to send looped midi data to a midi-cv interface to drive an analouge synth. if i click 'Stop' while a note is active, this note will stay until until note-off is sent manually (using the left border of piano roll, which sends new note-on and note-off). I'm not if bug or feature (with some "more natural" midi-synths, it might be charming to hear the reverbant sounds as with real instruments?).
but i would like to get note-off an all active notes, so that 'stop' means 'stop' :-)
Another Error that i get is, that if two notes are legato, i.e. note-off and next note-on are at the same time, next note is not played (i guess, only one command is sent in this case).
Have you tried clicking the exclamation mark button on the upper right? Doesn't this stop the sound either?