Endpoint(s) occasionally become unselectable

Core Machine (Operating system/System info/Roon build number)

Mac Mini 2012 / 16GB / Fusion Drive
MacOS 10.15.7
Roon 1.8 Build 756

Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet)

NetGear Orbi RBR50 (x1 router) / RBS50 (x2 basestation)
Router plugged into Altice STB
Core and endpoints on WiFi

Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.)

Raspberry Pi 3b+ (Ropieee) + Chord Qutest via USB
Raspberry Pi 3b+ (Ropieee) + Chord Mojo via USB

Description Of Issue

An endpoint which gets turned on and off occasionally fails to appear in the endpoint selector despite being visible in the Settings > Audio screen.

My Chord Mojo gets power cycled frequently. I turn it on for an hour or two to listen to music in bed and then turn it off at bedtime. When powering off the Mojo, it disappears from the endpoint selector and the Settings > Audio screen. When powering on the Mojo, it always shows up in the Settings > Audio screen, but sometimes does not reappear in the endpoint selector.

When the Mojo does not appear in the endpoint selector, it is occasionally (but not always!) visible when grouping endpoints into a zone. If I tie the Mojo and the Qutest together into a zone, I can listen on the Mojo even if it does not appear in the endpoint selector.

Restarting Roon Core on my Mac Mini will get things back to normal.

Apologies for the trouble, @woodnaudio

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