Why Does Cast Fails On Mobile Device But Not When Running Standalone?

I have a OnComponentHit (CapsuleComponent) collision that works fine on standalone and testing in the UE4 engine, but when I run it it on a iOS mobile device, the cast to the Parent does not work.

Does anyone have a clue as to why or is there something I am doing wrong.

It worked fine on 4.5.1, I updated to 4.6 and now seeing the issues.
Could this be a bug?