Or actually not! It looks as if the transistor had been in place and fallen off. When this did happen cannot be said. It even would have been possible to pass a function test.?
I’m happy that it was possible to fix it easily. This even makes building the kit more fun. The next days I will run further tests to see what I might have done wrong. But I really love the stacked design and the great debugging utility. It’s a great piece of tec! Love it!