Here are the Project settings that solved this issue for me in my VR project.
-Project Settings-
Default RHI DirectX 12
SM6 TRUE
Allow Static Lighting FALSE
Forward Shading FALSE
Reflection Method LUMEN
Global Illumination LUMEN
Shadow Map Method Virtual Shadow Maps
Generate Mesh Distance Fields TRUE
Enable Virtual Texture Support TRUE
Support Hradware Ray Tracing TRUE
Use Hardware Ray TRacing when available TRUE
I saw this in a youtube video a while back and decided to write it down, thank you youtube person! 