Hi! I have a hardware sequencer (Synthstrom Deluge) controlling a hardware sampler (Roland SP-404) through a cable, simple OUT-to-IN connexion. All goes well except, from time to time, all sound from the SP-404 would go off at once, until the next trigg. It is not a polyphony issue within the SP-404, I checked. When not connected to MIDI, this problem doesn't happen.
Where shoud I look?