Chorder: Notes don't stop

Hi all, I have assigned “Chorder” as a MIDI-Insert-Effekt (in Cubase 15 Pro).

It basically works (plays back the pressed midi-key as the defined chord.)

But: the notes don’t stop playing when the key is released. I can only stop them throuth the reset in the MIDI-menu.

How can I fix this? The sound should stop when I release the key.

Thanks!