@FrankP
It is currently under review. I will leave a comment as soon as it is updated
No I got a similar problem with the RS451.
What I’d done before the problem occurs:
Switched the output from analogue out to usb out and tried then playing something through Roon.
Local playing and Rosetube plays, but Roon not.
It needs a lot reboots and in the end also an Roon reboot for fixing it temporarily.
Tried it now again using the RS451 as roon endpoint, but it doesn’t work.
What seems to solve the problem: Deactivate in Roon the device and reactivate it again. Now I’ve checked ten times
- playing from Roon
- put the Rose into standby
- tell Roon to play again or another file
→ working again.
It seems, that switching the output (I’ve done this formerly sometimes with my RS150 without problems), which changes the max audio resolution for the roon endpoint doesn’t works further more.
@burki
The issue has been identified and is undergoing testing after being patched. If you send us your Rose ID, we can enable your device to receive the fixed firmware via OTA prior to the general F/W deployment
@FrankP
If you would like to test the fix for the Roon playback issue before the official version is released, please send your Rose ID (Settings > System Info) to the email address below. We will then send you an email with instructions on how to update.
(shim1691@citech.kr)
@burki
If you would like to test the fix for the Roon playback issue before the official version is released, please send your Rose ID (Settings > System Info) to the email address below. We will then send you an email with instructions on how to update.
(shim1691@citech.kr)
I’ve send you my ID for the RS451.
@Rose_love :Thank you for your prompt response. I will only be able to send the Rose ID next Wednesday, as the device is located in our second home 800 km away.
In Korea it‘s 22:30 pm now 
Send the email for over 9 hours ago and he asks me multiple times…
The email address currently registered in the community is different from the one received by @Rose_love.
When you send an email to the address below, please let us know which nickname you are using in the community.
shim1691@citech.kr