I don’t believe, that we’ve a hardware, but a firmware problem.
I’m using three Rose devices (1xRS150 and 2xRS250).
With the RS150 (using with external Holo Audio Cyan2) I’d solved the standby problem with a complete reset.
One RS250 works without any issues after the firmware update.
The second RS250 (also here an external DAC from ifi, but also used the analogue out) cannot work together with a standby (here changing the HDMI resolution changes also the audio output and I’ve resetted it many times). Starting from standby told nearly every time unstable system.or shows a black screen. Using the internal DAC shows in Roon no audio device.
Only solution was going back to firmware 5.8.03 early access.
Perhaps the Qobuz Connect fix in combination with the used DACs or HDMI displays produces this problems.