Post-Processing effects not visible with LWRP in Unity3D

Question

I'm are running into an issue when setting up Post-Processing effects for the new Lightweight render pipeline.

Post-processing effects are visible in scene and Game view, but not through the camera when running the game.

• The project is using single pass rendering for VR
• We are using the LWRP 3.0.0 and the Post-Processing package 2.1.2 (both are up to date)
• It seems like the Post processing volume and layer settings are working fine, as the effects are visible in scene and game view

We tried :

• Tweaking the quality and graphics settings

• Creating a new camera and setting the post processing settings again

• Removing all additional cameras in the scene

• Setting the exiting UI Canvas in the scene to Screen Space (Camera) instead of Screen Space (Overlay)

Answer 1

Solved : the issue was coming from other inactive Camera objects in the scene tagged as "MainCamera"