Hello All,
Thank you for the reports here. We have been able to reproduce this issue in the lab using BluOS firmware version 3.20.45 and power cycling the BluOS device.
We are in active communication with the Bluesound team and they are working on this issue. We are standing by and ready to assist them in any capacity they need to resolve this for all of our mutual customers.
In the meantime, we have found that performing a reboot of the Roon Core can help restore the Roon Ready functionality for the BluOS device. Please give this a try if you are impacted by this issue, thanks!