Case #1282011
URP camera stack has visual artifacts if base camera clear flag is “Solid Color” and overlay camera is added after start
When using Universal Render Pipeline, if an overlay camera is added to the base camera stack a few moments after the game has started, if the base camera clear flag is set to “Solid Color” or if no skybox is set, and if the overlay camera renders a moving sprite, there would be green and magenta artifacts left on the screen where the sprite was. This artifact does not go away and accumulates with the movement of the sprite, and would go away if the base camera clear flag is set to “Skybox” and a skybox is actually set.
When this issue happens, Unity is running on the high performance/AMD GPU of my Mac. Artifacts do not appear if I switch Unity to use Intel GPU.
MacBook Pro (16-inch, 2019), macOS 10.15.7,
I replicated this issue in both Unity 2020.2.0b4 and Unity 2019.4.9f1 using whatever the verified version of the package is.
