Issue with Ropieee since build 831

New build works like a charm on my android and iOS tablets.
I use a ropieee device to display what s beeing listening, with a raspberry pi and its lcd screen. Since the upgrade (831), I first notice this device doesnt go in idle mode any more and even worse, while playing music, it raises the volume up, to max power!!!
Is there any way to restrict volume control of this device? What can I do?

In fact, the ropieee device is configured to display what s beeing played on my main Roon Ready Device. And unfortunatly, it changes the volume until it reaches max volume…
I will maybe try to reflash the sd card… i dont know what else to do.