This one took me a bit to track down but I was having issues with my post SSR and AO not rendering sometimes seemingly at random.
Turned out the culprit was a debug Arrow component I was drawing. I reproed this in a clean BP First Person template build.
To repro:
- Create a scene that demonstrates SSR and SSAO
- Create a new Blueprint with a single Arrow component.
- Set the Arrow to be visible in game.
- Enter the game using PIE or Standalone.
- Look around and notice that when the Arrow BP is on screen that SSR’s and SSAO stop working.