Left hand steering controls flashing

[Loz]

MY2023 D5 with new PiviPro and half digital dash. (Agalog dials and center digital display)

So Yesterday the Left had steering control backlights are flashing and I can no longer change anything on the driver's display.
Also when I lock the car, the voice control button remains lit.

I have performed a reset of the media unit (by holding the phone button down for 30secs) but this didn't help.

Has anyone else seen this?
Does anyone know how to reset (reboot) the driver's display?