Kontakt-connection

But the output says “Kontakt 5 - midi in”. That is strange right, that should be out?

No, thats ok. The output of your midi track is assigned to the midi input of your Kontakt player. In Kontakt you have to chose the right midi input (or all midi in), then you should be able to recive midi signal in Kontakt.
But, if you hear any sound in Cubase is a completly different thing, having nothing to do with midi…

Oswald