Instanced Stereo enabled makes Material Billboard Components only Rendering in One Eye for Vive

Material Billboard components are only rendering in one eye with the 'Instanced Stereo' setting enabled in the Project Settings > Rendering menu.

If instanced stereo is disabled, it renders as expected.

1. Download and Open attached project.
2. Play in VR Preview mode.
3. View through Vive.

Outcome Material Billboard only renders in the left eye.

Expected Renders in both eyes.

Material Billboard Component and Instanced Stereo

Flipbook component in VR only appears in one eye.

VR BUG: Material Sprites from transparent PNG files are visible only in left eye

MaterialBillboardComponent ony renders in one eye in VR