On a side note they may want to fix the engine.ini for the VRTemplate also.
r.AntiAliasingMethod=3
r.SkinCache.CompileShaders=True
r.RayTracing=True
Pretty sure this is the reason for the solid white screen in forward rendering.
Go grab the ini from UE5.4 Template and you’ll see r.Raytracing and skincache is not an entry and removing and build->rebuild all corrects the issue.