I’m still not replicating this behaviour, pLocked AmpVol trigs remain off, maybe needs a step by step for those of us (i.e. me) not in the room yet on this :wink: Using XVol usually requires moving between two scenes (one locking XVol to Min), you’re talking about parameter locking rather than scene locking the ‘mute’ - I’m not with you on this one yet - just curious