Having the same bug, but I rarely use nautilus or play music, so I'm not sure what the trigger is for step 4 in my case. The last time it happened, I think I used nano+suspend+suspend, so maybe the suspend breaks sshfs in my case, since my internet connection dies when I suspend, but sshfs is still running when I wake up. My workaround is to kill sshfs before suspending.
Having the same bug, but I rarely use nautilus or play music, so I'm not sure what the trigger is for step 4 in my case. The last time it happened, I think I used nano+suspend+ suspend, so maybe the suspend breaks sshfs in my case, since my internet connection dies when I suspend, but sshfs is still running when I wake up. My workaround is to kill sshfs before suspending.