My hardware is a Pi4 with HiFi Berry Digi2 Pro and Roon Rock running on Intel NUC i3. In Ropieee V3 the Audio Hat was selected as HiFi Berry Digi Pro, and this worked.
I purchased the Digi2 Pro soon after its release and it has been working without a problem until the update to 4.002 last week.
Since the update to 4.002 the Digi2 Pro is no longer recognised in Roon. Under Settings About Ropieee is correctly listed showing Version 1.8 (build 806) stable. But, under Settings Audio Ropieee does not appear. At the bottom of the screen the message “No Audio Devices Found” appears.
I have tried a brand new unused SD card flashed with a new copy of 4.002, without success. I have tried changing the Audio Hat setting in Ropieee between Digi2 Pro and Digi2 but no difference. Rebooting Roon and Ropieee makes no difference.
I have resurrected my old HiFi Berry Digi Pro card which will work correctly with 4.002 using the hat selection of Digi Pro or Digi2 Pro.
It seems that the problem affects only the Digi2 Pro card.
I wonder if there is a problem in Release 4.002 affecting the Digi2 Pro card.
Any help would be appreciated.