Sound randomly being completely disabled

[Spectrum]

I've had my mogul for ~ 2 weeks now and have had this occur on multiple occasions. Vibration alerts work but no sound will play (outside of a telephone call) on the device at all. Most importantly ringer does not ring, but nothing will play via Windows Media Player either. The only way to re-enable sound on the device is a soft reset.

The first time I noticed this occurring the only non factory apps installed were SPB Mobile Shell and SPB Phone Suite. Thinking one of those might be responsible, I uninstalled both but the problem still occured.

Has anyone else come across this or know of a solution? Should I do a hard reset and run with it for a few days to see if it re-occurs?

I tried searching but have found no mention of this in previous threads, but if it has been addressed please point me in the right direction.