Troubleshooting.

Find checks for missing plug-ins, silent tracks, keyswitches, bowing, vibrato, and playback.

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Troubleshooting

SymptomCheck
Plug-in is missingRun the installer for your system; check macOS 14+ Apple Silicon or Windows 11 x64, enable AU/VST3 scanning as appropriate, then rescan and reload
No soundTrack monitoring/arming, MIDI input channel, musical range, Master and expression; release Lift and check manual force/speed are not zero
A keyswitch plays the wrong actionUse MIDI numbers, default first switch 34 and the current map; check hardware transpose and the clip's switch notes
A chord becomes one melodySelect Chords/MIDI 34; Melody is last-note priority
The string color is wrongTap the intended string/MIDI 48–51; restore Auto with 52; verify the note is playable on that string and channel routing is not overriding it
A phrase holds after key releaseRelease CC64 and Slur/MIDI 46, plus any other active hold; use Panic if necessary
Too many separate strokesOverlap melody notes or hold the slur pedal/key; confirm intended connected bow
Retake starts another same-direction strokeThat is the retake action; use Change for an on-string reversal, or 41 to resume automatic direction
Long notes turn too soonCheck manual CC20/21 and available travel; return physical bow support to Auto
Vibrato appears unchangedCheck open versus stopped pitch, aftertouch route and the Hand readout; direct CC76/77 overrides the automatic contour
Tremolo no longer follows dynamicsCC82 has taken manual control; use Follow dynamics on Bow
Sul tasto or hair control seems overwrittenSend CC22/23 with Refined articulation response enabled; return using Automatic point/hair
Harmonics sound in the wrong octaveEnter the base pitch, check CC96/type and release old harmonic holds
Room is too cloudyReduce Late reverb, decay or send; load a tighter venue setup
Playback differs from a fresh instanceUse Reset defaults to restore the factory setup, then check whether incoming MIDI or DAW automation changes it again