Incorrect Chromatic Aberration Correction in Unreal Engine 4 for Oculus Go on Android

Something is wrong with the chromatic aberration correction in Unreal Engine 4.21.0 on Android for Oculus Mobile devices such as the Go which causes a dark outline to appear on red/blue contrasting colors.

I've set up a similar scene in Unity and the effect is less noticeable. It would seem Unreal is doing something wrong in how they set up the layer descriptions via OVRPlugin, but I have not been able to convince them of this. I was told to try the Oculus Forums.