Reproduction steps:
1. Open the attached project;
2. Build the scene "Test" on a device;
3. Open the built app on a device;
4. Select and deselect InputField;

Actual result: the video stops playing. Also, the performance drops down.
Expected result: the video should not stop to play. The performance should stay the same.

Note: the issue does not appear while clicking a button, moving a slider. The problem does not happen in Editor. It seems that the issue is related to a keyboard which shows up after clicking an input field.

Reproduced with: 5.6.3f1, 2017.1.0p3, 2017.2.0b5

Note#2: an app which is built with 2017.3.0a2 crashes immediately. Also, the video turns off and on when an app is built with 5.6.3f1.

Devices under test:

Lenovo Lenovo PB2 690M*, OS:6.0.1, CPU:arm64-v8a, GPU:Adreno (TM) 510, Build:Lenovo/phinny_row/PB2PRO:6.0.1/MMB29M/PB2-690M_S100081_161103:user/release-keys

Samsung SM G903F*, OS:6.0.1, CPU:armeabi-v7a, GPU:Mali-T720, Build:samsung/s5neoltexx/s5neolte:6.0.1/MMB29K/G903FXXU1BQC1:user/release-keys

Google Nexus 6*, OS:6.0.1, CPU:armeabi-v7a, GPU:Adreno (TM) 420, Build:google/shamu/shamu:6.0.1/MOB30O/2920157:user/release-keys

Amazon KFMEWI (Fire HD 8 (2015))*, OS:5.1.1, CPU:armeabi-v7a, GPU:PowerVR Rogue G6200, Build:Amazon/full_thebes/thebes:5.1.1/LVY48F/32.5.6.3_user_563231720:user/release-keys