Devialet AIR sound settings (Windows)

[Confused]

Hello,

I connected my Devialet 120 with AIR and I noticed that in the sound settings there are strange unticked "Device specific" items with hex codes.
What are they for?

I also noticed that the highest bitrate setting (24 bit / 192 KHz) causes the AIR app to switch to "Disable Devialet AIR" after a few seconds, while 24 bit / 96 KHz works properly. Is that normal?

Thank you very much for your help

What buffer setting are you using?  (In the "unlock advanced settings" section of the AIR app on the computer)

It is a long time since I used AIR but I recall that the app would disable if the buffer was too large.  This might not be your issue, but worth a double check.