HT worked fine. Firmware update. No longer working - assist motor wiring

I doubt the error I have is necessarily related to the firmware, but just in case:

I wonder if anyone else who updated today is suddenly experiencing a 3 phase wire error on their HT?

Printed some parts this morning out of this AMS, everything worked fine. The last time I ran a drying cycle was… a day or two ago? Was working fine since.
Got home and cleared the bed to find the printer suggesting a firmware update.

So naturally I ran the update. Wasn’t even in the room, nothing was moved, bumped, etc.

Immediately after coming back online now it says my formerly functional ams has the assist motor 3 phase wire error.

  • Shut it down, waited several minutes and turned it back on. Nothing.
  • Unplugged everything and waited. Nothing.
  • Tore it apart, checked connection. Seems fine. Nope.
  • Reseated it. Nada. Still says resistance error.
  • Reseated it again, says the motor winding is bad.
  • Reseated again, says its not connected at all.
  • Multimeter on the pins show no (obvious) issue with the wires in the cable.

Reverted firmware, no change - so going back to the latest for the rest of the hardware.

Given the above, it seems to me like there a bad connector on one end or the other.

Anyone else?