Factorio Forums

-What did you do?
I opened the pause menu, entered sound settings, and exited without making any changes

-What happened?
Upon closing the sound settings, background music started playing with the game still paused

-What did you expect to happen instead?
Hearing music if I modified the slider of music or master, and having it cut off again when exiting the sound settings tab

-Does it happen always, once, or sometimes?
Always. It feels a bit random how long it takes for the music to unexpectedly come back, but it always does (not more than 10 seconds)

Thanks for the report. This is now fixed for the next release, 2.1.21. Music will resume only when changing the music volume settings and will go back to being muted when leaving the sound settings.