GearVR projects rendering black

Packaged GearVR projects are rendering black except for the Movement Widgets. This was reproduced with two machines on two separate devices.

This is a regression from CL 3244548

Setup:
Grab an Galaxy S6 or S7 Edge with the GearVR Headset

Repro:

1. Create a new Blueprint First Person project for mobile with scalable.
2. Configure the project for Android with the sdks set to 19.
3. Enable configure the AndroidManifest for deployment to GearVR.
4. Package the project for ETC2.
5. Install the project onto the device.
6. Launch the project and attach it to the headset.

Expected Result: The level renders and the user is able to see the first person character.
Actual Result: The project renders black except for the Movement Widgets.