That does not really disturb me, but I also was wondering why kick always bleed into snare, even when kick is muted.
The only combination I have found when that does not happened, is when kick is in Flexi slot.
I mean when kick is in kick slot, snare resonance is triggered for snare in any slot, including Flexi.
But when kick is in flexi, that does not happened.
That is really ugly workaround, I hope you find better solution