Steps to repro:

1. Open attached project and '02_RocksScene';
2. Go to Build Settings (File -> Build Settings);
3. Check 'Development Build' and 'Autoconnect Profiler';
4. Click 'Build And Run';
5. Choose build location and click 'Save';
6. In the Player configuration window select 'Windowed' flag and click 'Play!'
7. In Editor select Frame Debugger tab and click 'Enable';
8. Click once on Player window.

Expected result:
All instanced meshes are still rendered and their draw calls are visible in Frame Debugger window (see attached expected.png screenshot).

Actual result:
Instanced meshes disappear from Player window along with their draw calls in Frame Debugger window, so there is now way of debugging instanced draw calls for them (see attached actual.png screenshot and video).

Notes:
- Reproducible in 2020.1.4f1, 2017.1.0b1, 2017.1.0f1, 5.6.1p2;
- Reproducible on both Windows 10 and OSX 10.12.5;
- Reproducible only in Standalone Player, not reproducible in Editor - inconsistent behaviour.