Same here. See My Post #14 in this thread for details. My theory is that the firmware on the GEN2 UMC was updating causing the error messages. The release notes mentioned that a message would appear in the IC. I missed that and was looking for it on the 17” screen. Did you notice a message on the IC indicating that it was updating the UMC?After the update, my S wouldn’t charge. Said there was a fault in the power adaptor. Unplugged it from the car a few times, still failed. I unplugged it from the wall and replugged it in and it seems to work now.
Odd, hopefully it was just a glitch.