Yes, now works for me too. I’m getting crazy all the morning, but yes, now I know what was.
It happens that if you choose for Displacement the Grid texture “as projection”, attribute “alpha is luminance” is off by default, so there was appearently no displacement (or global displacement at all surface).
But still I can’t explain how I’ve done for attach a noise and get it not working…
I supposse I’m comdemned to find the correct way after make a post in the forum. Sorry Vlado for waste your time because me, and thank you for be there.