Hi; I've registered here just for this issue.. hopefully I can explain it well enough.
The filter cutoff knob sometimes independently sends a value corresponding (apparently) to where it is physically sitting.
So if I recall a patch with an open filter, but the filter knob is set low, sometimes the filter will 'automatically' close itself.
Maybe I've jostled the synth slightly, but I know I've not touched the filter knob. Its almost like the knob needs a slightly higher threshold before it responds to movement.
Has anyone experienced this? Any advice?
Thanks