Has anyone noticed anything odd with their 818v3 since these last couple of updates?

Mine has been solid since I bought it from a fellow Hitchhiker 3-4 years ago. But in the last couple of days I've been experiencing issues:
1. Its display was showing everything as MQA when it wasn't (a power cycle seemed to fix this).
2. It just randomly powered down (quite gracefully) mid track - it then didn't show up as a zone in Roon until I selected SLS as a source from the front panel.

All very odd...

Music room: 818v3, DSP9, Linn LP12
TV room: UHD121, 218, DSP 640.2

Meridian owner since 1998