Only getting one screen working in the HMD when making a project?

Hi guys. Long time lurker, first time poster.

Basically I’ve managed to create a level and I need to be able to view it in VR. I’ve got VR working with tracking through Steam VR.
however whenever I preview the project or package it i’m only getting the right screen (right eye) within the HMD. The left is just black.

I have added executable command “Stereo On” and “enableHMD” in the level blueprint…

can anyone help me. I’ve been at this for hours. Am I missing something?

Thanks

Which HMD are you using?