OK, well, as I demonstrated in the video capture, I’m seeing the voices assigned to different channels. They aren’t all channel 2.
Actually, Dorico has been crashing consistently of late. If I select the contents of every bar for a single staff in a flow, and some of the contents aren’t assigned to the default voice, then Dorico crashes when I attempt to switch to the Play tab. It’s also happened going from the Play tab to the Write tab. (EDIT: I don’t have to have anything selected. All I have to do is change a staff to divisi somewhere, then set all of the notes for that staff in the current flow to a new up-stem voice, then switch to the Play tab.)
The diagnostics are available here.