@David_Burkholder, in your first screenshot, it appears you are using the system output from your PC because the D10s is not in your signal chain in the second screenshot. Are you sure you have selected the correct output for the D10s? I have a number of interfaces connected to a Windows 11 laptop I use as a Remote and each is selectable from within Roon.
Did you enable exclusive mode after you took the screenshot?
The screenshot shows OS Mixer which means you’re not in exclusive mode.
Also, I don’t see the Topping in your signal path there.
You have it connected via USB?
Is the Topping enabled in Roon audio settings?
Once it’s enabled you’ll want to enable exclusive mode for the Topping by clicking the cog icon beside it.
Here’s my audio settings for example:
That looks like the right settings to me.
But if you’re seeing OS mixer, for some reason the Topping isn’t in exclusive mode.
It shouldn’t matter that the device isn’t recognized.
One of my DACs isn’t recognized either but it works as expected.
Hopefully someone else will have a solution or @support can help.