Steps to reproduce:
1. Open user attached project
2. Build & Run on mobile device
3. Observe the blank screen

Expected result: texture assigned to Render Texture should output the correct result

Reproduced in: 2018.3.0a8 - 2017.4.9f1 with OpenGLES3 and OpenGLES2

Tested devices:
No display:
iPhone 5 iOS 10.1.1
Xiaomi MI NOTE Pro (MI NOTE Pro), 7.0, CPU: Snapdragon 810 MSM8994, GPU: Adreno (TM) 430
Huawei Nexus 6P (Nexus 6P), 7.1.2, CPU: Snapdragon 810 MSM8994, GPU: Adreno (TM) 430
Motorola Moto X (2nd Gen) (XT1092), 5.1, CPU: Snapdragon 801 MSM8974AC, GPU: Adreno (TM) 330
Distorted display:
Asus MeMO Pad 8 (ME181C) (K011), 4.4.2, CPU: Intel Atom Z3745, GPU: Intel(R) HD Graphics for BayTrail
Asus Nexus 7 (2012) (Nexus 7), 5.1.1, CPU: nVIDIA Tegra 3 T30L, GPU: NVIDIA Tegra 3
Correct result:
iPhone 7+ iOS 11.1.1
Samsung Galaxy S5 Neo (SM-G903F), 6.0.1, CPU: Exynos 7 Octa 7580, GPU: Mali-T720
Samsung Galaxy Note2 (GT-N7100), 4.4.2, CPU: Exynos 4 Quad 4412, GPU: Mali-400 MP