Widget Interaction Debug Line Offset in each eye after Launch

Go to project settings > Engine - Rendering and try disabling “Instanced Stereo” & “Mobile Multi-View” I also disabled “Separate Translucency” under “Translucency” but not sure exactly what “Separate Translucency” affects in the packaged .apk.

Give those settings a try, package the .apk and see how it goes.