I’m not sure anyone else has had this problem, but when I muted one of the parts (it happened to be the one on top), the mp3 file exported “performed” the music silently so there was no sound!
Hi @JoelM, do you use Note Performer Playback template? I think, if this is the case, that NP uses only one stereo output into Dorico (that happens to be on the first channel), so happens that if you mute the first channel instrument, all the rest of the instruments are muted too (but I may be very wrong).
If you want to mute the first instrument, make this in the NP mixer, instead.
(or select all on that instrument/staff and activate the Suppress playback from the Properties panel)
1 Like