No audio after some time, have to reboot

[Drekkarian]

This might be related:

[4.0.1.48][4.1.0.23][4.4.0.64][4.5.0.16][5.0.0.29] No notification sounds (ringing, SMS, alarm)

REPRODUCIBILITY (% or how often): second time so far BUILD ID = OS VERSION (Settings > About product): 4.0.1.48 HARDWARE (XA2, Xperia 10…): Xperia 10 UI LANGUAGE: Slovenian REGRESSION: (compared to previous public release: Yes, No, ?): Yes (compared to v3) DESCRIPTION: Twice so far (first time was with 4.0.1.45) notification sounds stopped working - no alarm, no ringing, no SMS alert tone), in addition if I go to Settings → Sounds and try to change the volume there, the Settings app freeze…