Urgent help - live projection on feature film

I’m shooting a feature in one week’s time. VIRTUAL CAMERA IS UNUSABLE!
I cant set the Location or Orientation of the virtual camera.
I can’t get the start position to be absolute to the position and orientation of the IOS device.
I don’t want to have to run a bunch of Pre-rendered output. I need the live camera parallax to sell the shots

Can someone from EPIC or a knowledgeable third party please contact me urgently and help resolve this.

The only work around I have found is to parent everything in the scene to a cube and translate and rotate it to match the default start position of the virtual camera.