Thank you for your patience.
@CrystalGipsy is correct. Issues affecting Bluesound grouped Zones are tracked and ticketed with both our team and Bluesound’s developers, who will be releasing a fix via future BluOS update.
The relevant tracking thread in this forum is here: https://community.roonlabs.com/t/nad-bluesound-grouped-zones-out-of-sync-stopping-playing-and-or-skipping-tracks-investigating/243606
If you have issues affecting the Weiss only, without the Bluesound devices active at all, please let us know. Otherwise, we recommend following the aforementioned thread.