Just to add a little more information: After further testing, I've determined that the individual speaker volumes attributes stop updating almost precisely 1 hour after a hub reboot. This behavior is consistent and reproducible. Perhaps the player is not resubscribing to MRRC_EVENTS after the 3600 sec timeout?
I've got a couple of automations and one dashboard not working because of this, but none are critical, so just whenever you have time. Otherwise, everything is working perfectly!
Let me know if you have any questions. Sincerest thanks again for all your work on this!
EDIT 5/28/24: Resolved in this post.
