Actually the problem appeas to be in the core (visible from broker debug screen) so is affecting the whole system, but visability of the issue via different Control screens seems to vary.

I don't have problem yet, but I bet that 'explorer' artist screens will show the problem irrespective of what control unit is used to view this info.

Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 NUC), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).