Octave Cat SRM II - CV/Gate double triggering ADSR

Hello dear Syntaur Forum,
when I control my Cat SRM II via CV/Gate with an external sequencer the ADSR is triggered twice. I read in another forum that this is known with the Cats, somewhere someone wrote that you can fix the problem by wiring a resistor and a capacitor, unfortunately I can’t find the link anymore. I thought I ask here in the forum if someone could solve the double triggering. Since the guys from Syntaur have also produced this nice little documentary on the Octave Cat, I thought that the question seems to be in good hands here. Many greetings from Berlin