Quest 2 all I get is inky darkness

hi, I knows its probably a bit of a gimmick but I did want to try twin motion with my quest 2.

HArdware is

windows 11

10th gen i7

32 gigs ram

3070ti

When I launch airlink and then twinmotion for sure something happens the oculus screens go dark (but back lit) and thats it!

If I quit out the most recent app was twinmotion so its launching but nothing else.

Any hints on diagnosing?

Well FWIW I did a clean install of win 10 due to various issues with 11 and still the same result. Quest is 'running' twinmotion but its just a black screen