upnp plays all tracks twice

[the_bertrum]

It sound like a control point issue, so you will probably be better asking for help from the BubbleUPNP support (he's a great guy, especial if you buy the full version). I find using the "OpenHome" renderer within moOde works best for full functionality when controlling with BubbleUPNP so try that as well if you haven't already, also make sure you reboot everything (RPi, control device and router) after changing any UPnP settings, I find that things from the "old" config can get remembered in the oddest places and cause havok with testing.

I've never tried Qobuz, so that might be complicating things.