One of my 830's updated over night from version 79.18 to 81.16 , just says security and stability improvements in the release notes
We have 5 830s and have had 8 hard drive failures since we received them new from SD in May 2023. None of them has ever been more than 50% full, they don't last long enough to fill up. I no longer request replacements, instead I keep a spare 1TB SSD on hand to swap in when the inevitable happens.I have four 830's and have had one hard drive failure, maybe 3,4 years ago. My wife often has her two 830's at 99%+ full. It was hers that failed. But I have no complaints there.
I have not seen that bug since the update, disappointed to hear you haveI think the audio loss is still there.