How to reproduce:
1. Open attached "IncorrectColors" project
2. Build "SampleScene" to Android device and launch the application

Expected result: Default skybox should be seen
Actual result: Scene is rendered with some color artifacts

Regression introduced in - 2018.2.0b9
Reproducible with - 2018.3.0a4, 2018.2.0b11, 2018.2.0b9
Not reproducible with - 2018.2.0b8

Note - Issue happens only on Vulkan Graphics API, does not happen on OpenGLES3

DUT:
Reproducible with:
Google Nexus 6P, OS:8.0.0, CPU:arm64-v8a, GPU:Adreno (TM) 430

Not reproducible with:
Google Pixel C, OS:8.1.0, CPU:arm64-v8a, GPU:NVIDIA Tegra
Samsung SM N950F, OS:7.1.1, CPU:arm64-v8a, GPU:Mali-G71
Google Nexus 6, OS:7.1.1, CPU:armeabi-v7a, GPU:Adreno (TM) 420
Samsung SM G928F, OS:7.0, CPU:arm64-v8a, GPU:Mali-T760
Xiaomi MI NOTE Pro, OS:7.0, CPU:arm64-v8a, GPU:Adreno (TM) 430