SimpleHMD rendering problem

I was able to get the SimpleHMD rendering working on the iOS. However the issue is that UE4 4.7 preview 4 is rendering both the eyes in the half of the screen. See the attached screenshot.

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The right half of the screen is rendered black.

Is it too late?

If you look at this function of code in both GearVR and SimpleHMD:

void FGearVR::AdjustViewRect(EStereoscopicPass StereoPass, int32& X, int32& Y, uint32& SizeX, uint32& SizeY) const
{
    SizeX = SizeX / 2;
    if( StereoPass == eSSP_RIGHT_EYE )
    {
        X += SizeX;
    }
}

You actually seem to want the the offset to just be SizeX so you can comment out the line: SizeX = SizeX / 2;.