Sounds stop working without any known cause

[eblis]

I've experienced this issue two times already after installing the 17th of April build.
Fist time I experienced the issue was the day I installed the ROM ... I set an alarm for the next morning at 9 o'clock and the alarm didn't sound at all - I later found out that it didn't sound because the sounds weren't working at all - the alarm did in fact trigger, but nothing was audible.

I experienced the sound problem one more time since then - I just noticed that I don't have any sounds at all while plugging-unplugging the device (i use those settings to verify that sounds are still working :) ).

I'm not sure what's needed to debug/fix this issue so please let me know what you need.
No reproducer steps unfortunately, I can't tell when and why it's happening :(