I'm using Unity 5.6.3p2, trying to use layer culling and 2 cameras set to left / right eyes to display stereoscopic images and/or video. This works fine when previewing on Oculus Rift. However, when I build the APK and send it to the Android device, I only see a black screen. On Android, it works fine with one camera's target eye set to "Both", but when I set a camera's target to "Left" or "Right" it renders black on Android. I have seen similar issues in the forums and have tried using recommended solutions, without success. *In player settings "Multithreaded Rendering" is enabled, and Stereoscopic Rendering is set to "Multi Pass". *Minimum API level is 7.0(API level 24). I'm following all the guidelines listed for Mobile development for GearVR. *Have tried multiple combinations of player & camera settings (including clear flags, rendering path etc.). For now I am using a shader workaround, found online, which renders separately to left / right eyes. This could work, but I'd like to have the option of using the Editor to achieve the same effect. (and yes, that's likely more expensive) Please advise. Thank you!