How to reproduce:
1. Open "test2019tree.zip"
2. Build on Android/iOS
3. Rotate joystick to see the trees rotate

Expected result: Terrain trees not loading properly, no rotation towards player
Actual result: Terrain trees load properly

Reproducible with: 2019.4.13f1, 2020.1.13f1, 2020.2.0b11, 2021.1.0a6
Can't test with: 2018.4.29f1 (Errors in the console)

Reproducible with:
VLNQA00030, Lge LG G2, Android: 4.4.2, CPU: Snapdragon 800 MSM8974, GPU: Adreno (TM) 330
VLNQA00277, Asus ROG Phone, Android: 8.1.0, CPU: Snapdragon 845 SDM845, GPU: Adreno (TM) 630
VLNQA00006, Samsung Galaxy S7, Android: 8.0.0, CPU: Exynos 8 Octa 8890, GPU: Mali-T880
VLNQA00121, Samsung Galaxy S9, Android: 9, CPU: Exynos 9 Series 9810, GPU: Mali-G72

Not reproducible with:
Player on Windows
Editor on Windows
Player on macOS
Editor on macOS
iPhone 6 (iOS 12.4.8)
iPhone 7 (iOS 12.3.1)

Notes:
- "trees.jpg" shows tree billboards that are supposed to be invisible
- Tree rotatation is fixed in 2020.2, 2021.1
- Trees are loaded correctly (billboards are transparent) When Graphics API is set to Vulkan