I have EMM DAC with USB, it supports PCM up to 192KHz and DSD natively up to DSD64.
There was an entry in the audio setting to specify that maximum DSD rate, so Roon will stream DSD64 as-is, but everything beyond will convert to PCM
However this setting is gone now!!
I’ve been working with Roon for few years already
How I can configure DSD128 for conversion to PCM 192/32, but DSD64 to stream as DoP?
Moreover, there is some nasty bug, that sometimes Roon decides to convert the DSD content to 176/24, even though the setting is DoP!
I installed and reinstalled Roon, and it did not help at all.
What did help eventually is to enable the filter in DSP studio, and then to disable all filters (weird)
I am not sure this ‘cure’ will help for long time, what;s wrong with the latest version?