Single Pass Rendering SteamVR Vive fails to combine stereo view

I'm not sure if the title accurately describes what's happening. A picture might work better:

Settings are as follows:

• SteamVR 1.5.9
• SteamVR plugin version unknown at the moment (will edit)
• XR Rendering: Single Pass
• Single VR Camera setup
• VR Camera is set to forward rendering

Specs:

• Unity 2018.2.10f1
• HTC Vive Pro

What seems to be happening is that the renderer fails to combine the left and right eye view into a coherrent "single" image OR the renderer produces a sort of "debug view" that is then sent. But I honestly have no clue. Google didn't have any answers or similar stories.

 

Bump.

 

Follow up:
Apparently, this issue can be caused by specific combinations of post-processing effects. In this case, disabling the component of type "TOD_Scattering" (from the Asset "Time of Day") on the VR Camera fixed it.