Reproduction steps:
1. Open the attached project.
2. Build it to an iOS device.
3. Click the only button on the screen.
4. Check the console.

Actual behavior:
1. "====before PlayVideo====" (line in the Console).
2. Video starts.
3. "====after PlayVideo====" (line in the Console).
4. Video ends.

Expected behavior:
1. "====before PlayVideo====" (line in the Console).
2. Video starts.
3. Video ends.
4. "====after PlayVideo====" (line in the Console).

Reproduced with:
iPhone 6 iOS 10.3.3, iPhone 5s iOS 9.3.3, iPhone 7 iOS 11.0
5.6.6f2, 2018.1.9f1, 2018.2.1f1, 2018.3.0a6