Steps to reproduce:
1. Download and open attached project "New Unity Project 11.zip"
2. Load all scenes from project folder\
3. Notice that all the cameras created by the scenes stack in one place

Actual result: Black square is shown beneath camera image (See image: https://gyazo.com/6c3861997502c75f8d582ca88d99062b)
Expected result: Same transparency just as one sprite is shown (From 5.3 https://gyazo.com/031dda99bd4cb8aa7a778eeda68cd820)

Tested and reproduced on:
Windows 10
Unity 5.4.0b8

Not reproducible in:
Unity 5.2.4p1 5.3.3p2