In versions of Unity prior to 5.5 the rendering path could be controlled from the Player Settings, however in 5.5 this option has been moved to the Graphics Settings instead. This change hasn't been properly described on the camera's Rendering Path option, which still says "Use Player Settings" rather than "Use Graphics Settings".

Reproduction Steps:
1. Select a Camera in 5.5
2. Observe that the Rendering Path incorrectly says "Use Player Settings"

Expected Result:
The Rendering Path option on each Camera should properly explain where to find the shared option.