Whenever I work with samples, and am typing in notes from the keyboard or from a MIDI device, the program always stops playing the sample when I lift my finger off of the key. Why doesn't this happen when I'm using Instruments? It just keeps playing the note, and is only stopped by waiting for a very long time, or by hitting the escape key. This causes quite a note pileup if you're trying to hit the right note by ear.
Am I forgetting something in the Instruments tab? Other than this, my experience with OpemMPT has been fantastic!