Pedal silenced after muting and unmuting during playback

Steps to reproduce:
1. Open the attached score (and open mixer)
2. Press play. Observe that notes are sustained
3. While playing, mute the piano in the mixer
4. Unmute. Observe that notes are not sustained

Also observe the following:
a) When the second pedal marking is reached, the sustain re-engages.
b) If the piano is muted before starting playback or before the pedal change, it sustains as expected when unmuted after.
c) None of the above stop the bug from occurring if the volume is immediately toggled again.
Nothing changes if you unfold the repeat or use another instrument.

Expected behavior: Notes marked as sustained should be heard as sustained whenever the instrument is playing.

Actual behavior: Notes are not sustained after the instrument has been muted and unmuted within the duration of a single pedal marking.

OS: macOS 10.16, Arch.: x86_64, MuseScore version (64-bit): 3.6.2.2887027078, revision: 2513676