Cubase Pro 13: a problem with CHORDER (midi inserts)

I’m using a windows 10 desktop
When trying to use the CHORDER (one of the MIDI inserts) I hear a chord twice: when I lay my fingers on my midi keyboard controller, and when I lift my fingers from the keyboard. All that time there is a continuous sustain, as if the sustain pedal is switched on constantly, even though I don’t even touch it. When I play back what I’ve just recorded, it sounds correct (no sustain).
reset things or opening a brand new project and trying again didn’t help.
Thank you

I have the same issue. Anyone else?
Is there a solution or am I missing a setting somewhere?

Cubase Pro13, Windows 10, Novation Launchkey61 Mk3 controller