trouble with client server and standalone VR

Hi,

I ve been bumping my head against an issue with our VR scene.
This is the blueprint of the listen server/client side:

To join, I use an other scene with only this blueprint:

I’ve been trying this setup on a 3rd person blueprint template project, this seems to work ok.

When I am in the VR project(pretty much the VR template), actions made by the server/client play mode are seen on the standalone side: cube are moved, other player sees the helmet and hands just fine.
But nothing made on the standalone side is visible.
I ve been doing some research, ticked some replicates but no effect so far.
Any ideas ?
THX