My phone speaker stopped working completely after receiving 2 messages in the same time in mitäkuuluu. I'm not sure does it have anything to do with the custom ringtone in /usr/share/sounds/jolla-ringtones/stereo.

Now I can't get it working again, already rebooted many times. Sounds work in general though.

Not sure should I create another thread or does anybody have good hints for the problem?