Steps to reproduce:
1. Open attached project
2. Build for Android and run
3. Press 'Rewarded' button couple of times till the button 'Complete survey to win coins' shows up
4. Press 'Complete survey to win coins' button
-Ad doesn't show up

Expected result: Ad should show up sliding from the left
Actual result: Ad doesn't show at all, as rect is invisible

Note: only reproducible with Android devices

Reproduced on: 5.6.0b3, 5.6.0b4, 5.6.0b6, 2017.1.0b6
Not reproduced on: 5.5.2p2, 5.6.0a5, 5.6.0b2
Regression found in: 5.6.0b3

Devices Under Test
reproduced with:
Samsung SM G928F, OS:7.0, CPU:arm64-v8a, GPU:Mali-T760, Build:samsung/zenltexx/zenlte:7.0/NRD90M/G928FXXS3CQD3:user/release-keys
Sony D6503, OS:6.0.1, CPU:armeabi-v7a, GPU:Adreno (TM) 330, Build:Sony/D6503/D6503:6.0.1/23.5.A.1.291/2769308465:user/release-keys
Xiaomi MI 5s, OS:6.0.1, CPU:arm64-v8a, GPU:Adreno (TM) 530, Build:Xiaomi/capricorn/capricorn:6.0.1/MXB48T/V8.0.10.0.MAGCNDH:user/release-keys