Hi i use the faderport 16 together with Cubase 10.5. i try the "sends" button. First i select in Channel mode my Track Nr. 1 and then i presss sends. if i move the sends level by mouse i see that the first 4 fader work as send level. if i touch the 1 fader it work also as send level, if i use the 2,3 4 fader the will not controll the send level. They controll the volume level of the next track. So what can i do ?