Victory music doesn't work in A24 SP. That's because the modal pauses the game, and pausing the game pauses music.
This has been the case since rP13347.
Auto-pausing the game (structree, ...) didn't really happen in the past, but A24 makes it relatively common, and I think pausing the music is a bit jarring then, so this simply removes that.
Reported by: @Langbart