Mixer: Solo glitch - singled out instrument using "solo" button now the only sound on playback of the entire score

• Dec 25, 2018 - 16:38
Reported version
S2 - Critical
needs info


(MuseScore recommended format)

Steps to reproduce bug (requires a score with multiple instruments)
1) Open Mixer
2) Solo out an instrument (for me, it was an acoustic guitar)
3) Playback score with "solo-ed" instrument
4) Turn off solo on instrument
5) Playback score again

Expected behavior: MuseScore should solo out the instrument in the first run through, and then, after turning off the solo, should bring the rest of the instruments back in.

Actual behavior: Solo-ed instrument is stuck as the only sound in the score even after turning solo back on and off

Discussion: The workaround I found was to turn on solo on all of the instruments in the score, and I was able to hear all the instruments again.

Version: MuseScore v.
Revision: 96c1f7b
Downloaded from website/Not complied from source
Operating system: Windows 10 v.1803 (OS build: 17134.472)



PROBLEM: I was working with a score, and wanted to solo out one of the instruments so I could catch it up to where the rest of the instruments were in the score without it being covered up by the rest of the instruments. After getting to a stopping point, my plan was to turn off the solo so I could hear all the instruments. The problem was, when I did, no sound from the other instruments came out. The guitar was stuck in "solo" mode.

solo_step1.JPG solo_step2.JPG

WORKAROUND: I figured out that by enabling the solo button on all of the instruments, I was able to hear all the instruments again, but it may happen again.


-- Steps to hopefully reproduce the process (solo_step1.JPG and solo_step2.JPG)
-- Screenshot of mixer displaying the workaround. (solo_workaround.JPG)

UPDATE (12/25/2018 10:51 CST): Fixed itself, but I don't know how or why. May still be something to look into.

Attachment Size
solo_step1.JPG 52.1 KB
solo_step2.JPG 51.97 KB
solo_workaround.JPG 52.73 KB


I don't know what happened, perhaps its the score? I tried it on a few scores both imported from version 2 and created from scratch in version 3 with no problems. I'm using the same windows 10 build you are.

Frequency Once Few

Mine actually started refusing to play anything. I soloed a trombone section, unsoloed them, and suddenly I couldn't hear anything at all, like the whole score was muted. I had to Solo anything I wanted to actually hear.