Donny, this usually occurs when playing and holding down the left chord while switching voices with right hand registrations. You really have to work hard at it during a performance to cause a problem.

Gary

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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)