Voices outcome in play mode


In my current project (a TTBB arrangement) in Dorico 3.5 I have the following issue:
When I play the final piece, I can hear all the 4 voices, but they’re coming out only from one track in the mixer (all 4 voices in track 1 - I can see it in the mixer’s amplitude).
When I start a new project and add the TTBB-voices, everything works fine: every voice has it’s own track in the mixer.

Because I want to export a Stereo-file, help on this issue would be very appreciated. Thanks!

Open the HALion Sonic SE editor window and in there go to the Mix tab. On the right side is the output routing. Most likely all your slots are set up to send to Main. Change all assignments except for the first slot and you shall be fine again.