Filter knob on Kontrol S2 turn off (reset) when pushed in

Ever since, I believe, the 3.7 update the filter knob on my Kontrol S2 no longer resets to zero when pushed in. So to be clear, before the update, I could turn the filter knob up or down any amount, push in, & then it would be effectively turned off. Now it won't do that.

I'm sure it's just a mapping issue but I really have no idea where to even start.

Not a massive hinderance but any help would be appreciated.