After installing Build 1226 on windows, i can not see my DAC or Asio configuration under AUDIO.
My ELAC DDP roon endpoint is still there but my RME ADI DAC is not reachable as a player on PC.
Just HDMI of my NUC and ELAC roon ready endpoint is there
It works correctly on PC without roon.
Restarting Windows, roon and rock brought no improvement
I no longer see any ASIO settings in roon under AUDIO
I take it the Core is a different PC? Try turning off the firewall on the Windows PC and see if the device shows up. If it does then you need to allow firewall access for Roon, RoonServer, Raatserver. Windows updates sometimes can reset previously set firewall exemptions.