I re-created this material setup:
https://s12.postimg.org/7szajafsb/blob_material.png
src: Dynamic blob shadow ? - Rendering - Unreal Engine Forums
and ran it on Gear VR (Android 6.0.1 ES2).
This is what it looks like on the device:
https://s2.postimg.org/4sap3hrl3/com.Supranormal.GVR_Ph_C_Titan_08-20170612-215623.jpg
src: https://s2.postimg.org/4sap3hrl3/com.Supranormal.GVR_Ph_C_Titan_08-20170612-215623.jpg
Then I figured I should check what it looks like in the Editor with Android preview. This is it (even worse than on the device):