Glad to hear the reboot allowed music to play.
Hmmm it is odd to still see 2
When you click on the settings button for neveruse, do you have an option to disable that device in Roon?
And then reboot again, does it still show?
I used to have this same DAC but now have an RME
After reboot can you show screenshots of Audio MIDI app in Utilities folder ? Before you re-open Roon
I hope da music is still filling the air 
I see you are an Earth Wind & Fire fan. You should share some of your fav tracks in my R&B / Soul / Funk music thread !