I created an automation wich reduces the volume of my kick and after playing it once with the other tracks in the song editor the whole track with that kick is silent.
I used the Amplifer FX for this, in the song editor it is turned on, but in the master section of the fx mixer it shows that there is coming no sound from it.

SOLVED EDIT: i had to to bring the volume back up in the automation track so the kick wouldnt stay quiet