Original VAG comfort indicator always has a short “slip”

Hello together, I have built in my 97 Audi Cabriolet the original comfort turn signal from VW. The function in itself is there, so it flashes 3x when you tap the turn signal, but the turn signal has at the beginning, I would say always in the moment when the turn signal is released again a very short dropoff … so as if it were briefly lit for the duration of the “hold down the turn signal”, then briefly expose again and then start with the three turn signal operations. che on the Internet has shown that I am not the only one, but unfortunately no way to solve the problem. In this installation instructions a video is inserted on the second page that shows the behavior (but only blinking at the right). So I don’t like that at all => Does anyone have an idea what to do here?