[ViveSR_Sample problem: black screen and white square]

I have the same issue. When I run ViveSR_Sample in unity, i only see a black screen and a white square.

Run on Windows10, Unity2018.4.28f1, SteamVR 1.5.12, SRWorks v0.9.7.1_Unity_Plugin and Vive Pro eye. 

However , I can I can successfully run the pre-compiled demo in SRWorks_v0.9.3.0_Prebuilt_Samples-Unity\Build-Unity\Experience\Vive_SRWorks_Demo.exe

Thanks in advance.

SR_logs.rar