I use roon 416 on Windows 10.The problem occurs when I use asio output and close roon without firstly pause the playback,I will not be able to use the device again unless reconnecting the DAC with PC.If I use wasapi or pause the playback before closing roon, everything is fine.So I think the ASIO driver is not released correctly when closing roon directly.
If I have played any DSD via the ASIO driver then Roon maintains control of the device to the point I have to turn off the server to get the device released for general use by other applications on the computer.