Reproduction steps:
1. Open the attached "Trimmed" project.
2. Make sure Anti Aliasing is set to Multi Sampling in Edit > Project Settings > Quality settings.
3. Build and run the "test" scene into an iOS device.

Actual behavior:
Screen is tinted with opaque color (Screenshots attached).

Reproduced with:
- 5.5.4p1, 5.6.2f1, 2017.2.0a4
- iPad Mini 3 iOS 9.3.5, iPhone 6+ 8.0, iPad Mini 10.2.1,
Samsung SM G928F*, OS:7.0, CPU:arm64-v8a, GPU:Mali-T760, Build:samsung/zenltexx/zenlte:6.0.1/MMB29K/G928FXXS3BPIA:user/release-keys
- Metal, GLES

Not reproducible with:
Editor, OSX Standalone