A7 iii issue with monitor

[Astro-Fritz]

Hey all,

Othernight I went out and did some astrophotography with the a7 iii. I came to check on the camera and the monitor was doing this:
https://www.youtube.com/shorts/QPubwTdwMfk

I turned off camera and turned it back on, it continued to do funky things then I brang it in for the night.
It was a mild dewy night, so not sure if any liquid got into it. 

This camera has never been dropped nor hit.
Now when I turn on the camera on I am faced with a blank screen with a black light. Nothing to do with the EVF. ( can see the screen go dark when I cover the sensor)
Back Light comes on.
No icons on screen.
No menus on screen.
The EVF works perfectly fine.

Any idea what is causing this issue?

Cheers,