How to reproduce:
1. Open the attached project
2. Enter Play mode
3. In the Game view, observe the Display 2 view (this is the correct behavior)
4. Build the project
5. Launch the build
6. Observe the second display (this is the wrong behavior)

Expected behavior: Camera on the second display shows the bouncing ball (like in Editor's Play mode).
Actual behavior: The ball is not visible on what the Camera on the second display shows.

Reproducible with - 2019.1.0a12, 2019.1.0b9, 2019.2.0a1, 2019.2.0a10
Not reproducible with - 2017.4.24f1, 2018.3.10f1, 2019.1.0a11