Spotify is still working today, but I got the mysterious "immersive sound" 3 setting option "off", "standard" and "high" in place of the usual Dolby surround on/off option. I've had this before in earlier versions of V9 and it happens randomly without an MCU reboot or software upgrade. Is Tesla messing around with their own alternative to Dolby or is this some kind of weird bug? Whatever it is, the 3 immersive sound settings have no effect whatsoever on the sound, so the settings are inactive.
Anyone else seen this one before? Oh well at least the music is still actually playing!
Edit: a quick Google search suggests the new "immersive sound" settings may be exclusively for MCU2, so could be a bug appearing randomly with my MCU1. Others seem to agree that the different settings are inactive, but that could be because MCU1 doesn't support it. It's another annoyance as I much preferred Dolby switched on for the bulk of my listening and it now effectively has that switched off permanently - or at least until the Dolby option randomly appears again.
I'm guessing maybe the software does an MCU check on start up and then loads the relevant sound option page, but sometimes gets it wrong!