RS250 Volume on USB IN

I have volume fixed on my streamer (eversolo T8) and the Rose RS250 (first gen) is set for fixed output via RCA, but when I connect the two via USB the Rose is setting a volume super low somewhere unaccessible to the UI. This can be confirmed by hooking the RS250 USB up to my computer which does the same thing. I change the volume on my computer and then the Rose holds that setting if I hook the streamer up, but it’s not surviving reboots of the rose. How can we set fixed volume via USB to actually be fixed volume at full output? The Streamer doesnt have volume settings.

I’ve seem similar posts with Aurender so it seems to be a Rose common problem.