Steps to reproduce:
1. Open attached project
2. Build for android or install one of already created .apk
3. Start application on android
4. Press home button before unity logo appears(important)
5. Go back in the app
-All sprites become black(in older devices screen is flickering)

Expected result: sprites should be rendered correctly.

Reproduced on: 5.5b7, 5.4.0f3, 5.3.6p4