Sustain Pedal Feedback Loop using Synth Section

[NordUserSR]

Hey there,

just got a Stage 4 and created a standard Patch with Piano and Strings (SymphStrings Leg Soft Amb). Sustain activated on both sections.
When I play some typical ballad stuff, playing close voice leading, using sustain naturally there are notes repeated while being sustained. Now theses single Notes create a weird feedback-ish kind of amplification, like when I change between Triads Eb and Bb a few times the Note Bb will get unnaturally loud and the sound gets very unbalanced.
I'm a pro Pianist and I think I keep my playing "clean" enough but in this case I have to cancel the sustain and lift the chords in a very unmusically way to "reset" the string sound. I played the Stage 2 for 10 years before with the same setup and never had that problem except from bass-samples to be honest.

I'd be very glad if you could get me a reason for this problem and maybe an elegant way to solve it!

Thanks a lot and keep rockin!
Stefan