On the volume control, there is a DSP selection. Check if you have any DSP filtering switched on (eg mixing, convolutions etc). Some of the features in DSP Engine can consume a lot of CPU resources. Check the processing speed indicator to get a sense of performance. A number below 1.0 mean that the CPU on your Roon core is not powerful enough. Try turning off any DSP and see if the problem goes away.
I know that both parties (them and Roon) are aware that the issue exists. They normally do major updates towards the end of the year so we should keep our eyes out for that. Alternatively, connecting via USB seems to be something that we have seen get around this
I would also like to confirm what is happening in the logging by enabling remote diagnostics. Can you turn on your core and leave it on? I also would like to know what you were playing when the issue happened, the date, and the time. I’ll then be able to take a peek and see what Roon thinks is going on.
We looked at logs together as a group today and just don’t see an issue. Something might be happening between the Node and the H120. Can you eliminate the Node from the equation and see if the issue persists? If it doesn’t, swapping cables and/or trying an alternate method of connecting the two would be the next step.
Both Roon and Bluesound are aware of distortion issues when using some BlueOS devices with Roon. Bluesound may have a fix coming for this in the next couple of months. You might try connecting it to your H120 via a different method as a workaround.