Footage 'Advanced 3D' layer alters the color luma levels
When I switch from Classic 3D to Advanced 3D in the latest version of After Effects it alters my footage luma levels. Initially I thought it was a bug, but then I discovered that it can be recovered using curves and also by adding an Ambient light and adjusting the settings (set Ambient to 100% and everything else to 0%) - see video link example. - https://vimeo.com/1023856696/edddc7255a?share=copy
Is this expected behaviour?
