Repro steps:
1. Open QA attached project “repro_1201150”
2. Make sure "Optimized Frame Pacing" setting is used in Player Settings -> Resolution and Presentation
3. Make sure OpenGLES is used as Graphics API
4. Build and Run on Android
5. Observe the device’s log

Actual: "Swappy::EGL: Failed to get timestamps for frame" spammed in the log

Reproducible with: 2019.2.14f1, 2019.3.0b12, 2020.1.0a4
Not reproducible with: 2019.3.0f1, 2020.1.0a5, 2020.1.0a15

Tested and reproduced on these devices:
VLNQA00128, Samsung Galaxy Note8 (SM-N950F), Android 9, CPU: Exynos 9 Octa 8895, GPU: Mali-G71
VLNQA00006, Samsung Galaxy S7 (SM-G930F), Android 8.0.0, CPU: Exynos 8 Octa 8890, GPU: Mali-T880

Didn't reproduce on these devices:
Samsung Galaxy Note10 (SM-N970U), Android 9, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640
VLNQA00262, Sony Xperia XZ Premium (G8141), Android 9, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
VLNQA00001, Google Pixel 2 (Pixel 2), Android 9, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
VLNQA00121, Samsung Galaxy S9 (SM-G960F), Android 9, CPU: Exynos 9 Series 9810, GPU: Mali-G72
VLNQA00270, Samsung Galaxy S10e (SM-G970F), Android 9, CPU: Exynos 9 9820, GPU: Mali-G76

Notes:
- Optimize Frame Pacing option appeared in 2019.2.0a6
- Fixed in 2020.1.0a5